Kim Seon-ho made a return to social media after maintaining radio silence after getting involved in an ex-girlfriend controversy. The Start-Up star shared a heartfelt letter to his fans, apologizing and promising better things in the future.In October of 2021, mere moments after the Hometown Cha Cha Cha season finale, an anonymous poster took to a Korean online forum to accuse Kim Seon-ho of forcing her ex-girlfriend to get an abortion. The controversy, which lasted well over a month, took many twists and turns. Things were silenced once the Korean agency Dispatch disproved several of the ex-girlfriend's accusations.Despite the favorable resolution, the actor stepped away from public life, choosing to bid farewell to several projects, much to the sorrow of his fans. View this post on Instagram Instagram PostKim Seon-ho hints at a possible return to acting in sentimental Instagram postThe Welcome to Waikiki 2 actor made a much-awaited return to the social sphere just a day before his birthday.On May 7, Kim Seon-ho took to Instagram to upload his first-ever post since October 2021. View this post on Instagram Instagram PostThe post featured a picture of the sky with a waning moon. The actor used the caption to pen down a touching letter for his fans, who stayed by his side through thick and thin. He wrote:“I’m sorry that I’ve made you go through difficult times because of my shortcomings… Thank you for celebrating my birthday this year as well and sending me more birthday wishes than I deserve. I will remember the precious feelings you’ve expressed to me, and I will become an actor that can repay your support and encouragement.”The actor also shared a longer version of this on the social forum, Fancafe.oli 🌱@seon___shinelost count of the number of times i read his letter 🥹 to say that this man is kind-hearted, humble, and loving is an understatement. i'd like to believe he is literally an angel sent from above ctto#GlobeKimSeonHo #KimSeonHo #HappyBirthdayKimSeonHo247lost count of the number of times i read his letter 🥹 to say that this man is kind-hearted, humble, and loving is an understatement. i'd like to believe he is literally an angel sent from above 😭ctto#GlobeKimSeonHo #KimSeonHo #HappyBirthdayKimSeonHo https://t.co/7kt1a57seeFans of the actor left many supportive messages in the comment section, wishing the actor luck. They are eagerly awaiting his return to the entertainment industry.Yuka ◡̈ 💙@YukaSeon18Last year he released a song for us, This year is 175 and a long message from him I still can’t believe that it happened all yesterday 30 mins before his Birthday Thank you Seonho, Happy 37th Birthday 🥹#KimSeonHo #김선호 #キムソンホ 29860Last year he released a song for us, This year is 175 and a long message from him 😭💙I still can’t believe that it happened all yesterday 30 mins before his Birthday 😭Thank you Seonho, Happy 37th Birthday 🥹💕💙#KimSeonHo #김선호 #キムソンホ https://t.co/AWlLkaE81Xmumu ◡̈@seon__shineOUR PREFERRED ACTOR #KIMSEONHO 1/2 Thank you for not giving up, thank you for being strong. We're so proud of you. let's walk on flowery path from now on #KimSeonHo#김선호294130OUR PREFERRED ACTOR #KIMSEONHO 1/2 Thank you for not giving up, thank you for being strong. We're so proud of you. let's walk on flowery path from now on 💙 #KimSeonHo#김선호 https://t.co/dptPCFmokYris ◡̈︎ seonho birth !@seonhorizon"seonho__kim just posted a photo.""kim seonho wrote a letter in fancafe"me:2173627"seonho__kim just posted a photo.""kim seonho wrote a letter in fancafe"me: https://t.co/iFTYSarW3YThalassophile@Thalassophile47Kim Seonho, your birthday is like festival, celebrated across the world with cakes, cards, gifts, billboards, decorations, parties and donations. Those words that came from your heart in the letter has reached our hearts. Its an awesome return gift. #KimSeonHo #김선호2711Kim Seonho, your birthday is like festival, celebrated across the world with cakes, cards, gifts, billboards, decorations, parties and donations. Those words that came from your heart in the letter has reached our hearts. Its an awesome return gift. 💞 #KimSeonHo #김선호 https://t.co/rMFz3KJhwqHappy SeonHohada 💙@dailyseonhokimSeonho writing his letter to us is sooo preciousROMANTIC SEONHO DAY#HappySeonhoDay#GlobeKimSeonHo#푸른달_여드레_피어난_선호#KimSeonHo #김선호Seonho writing his letter to us is sooo preciousROMANTIC SEONHO DAY#HappySeonhoDay#GlobeKimSeonHo#푸른달_여드레_피어난_선호#KimSeonHo #김선호 https://t.co/XkfgwRIwKBjs@jkshum@SC40424898 @tteokkbokkie It’s so touching to see him openly share his feelings, the struggles , when time stopped for him and his determination to move on. I can’t imagine a more sincere person than him in this world especially a public figure. A very real and loving person he is. I am very moved.9@SC40424898 @tteokkbokkie It’s so touching to see him openly share his feelings, the struggles , when time stopped for him and his determination to move on. I can’t imagine a more sincere person than him in this world especially a public figure. A very real and loving person he is. I am very moved.Incidentally, the actor was also spotted recently on April 18, avoiding the public gaze at the Seoul airport. Kim Seon-ho was returning from Thailand after filming the movie Sad Tropics.✌︎@seonhojpeg220418 Kim Seonho’s Arrival at ICN International Airportsomeone tripped and look at him checking on her.#WelcomeHomeKimSeonHo#KimSeonHo #김선호 #คิมซอนโฮ2937906220418 Kim Seonho’s Arrival at ICN International Airportsomeone tripped and look at him checking on her.#WelcomeHomeKimSeonHo#KimSeonHo #김선호 #คิมซอนโฮ https://t.co/yHuHVvkVR2While the actor was dropped from almost all his projects, including the much-loved variety show 2 Days & 1 Night, he remained on the cast of Sad Tropics since the filming was set to go on as scheduled in the winter of 2021.Sad Tropics is directed by Park Hoon-jung, whose other works include New World and The Witch: Part 1. The Subversion. The movie is expected to premiere in the second half of 2022.