[Update]
IU and Jong Suk have written letters to their fans about their relationship:
IU's letter:
"Hello UAENA!
Are you all asleep at this time? Wondering where you spent the end of 2022 and if you might have had a bit of a confusing last day of the year because of me, today I came to relay new year’s greetings along with my gratitude and apologetic feelings.
Those who saw the articles today must know that I am currently dating. I think our UAENA who are always worried about me and curious about how I am doing must have been really surprised, so I feel very cautious about this but, yeah..that happened!
He was a colleague for a long time, and we are building up positive feelings while relying on each other.
He is a reliable and cute person who has supported me for a long time, always told me I’m amazing and sent me sincere encouragement.
As UAENA always watches over me most closely, I think you must feel that I am in a time where I am emotionally comfortable and doing well. Along with that, I think one of the reasons that my pride and passion for work are surging even more these days is because I have a good friend who compliments me for a long time up close.
Since you have all found out now, we will date quietly and beautifully to not worry my fans….!
Sorry to surprise you, but I am so apologetic and thankful to UAENA who still congratulated me and first asked how I am.
I didn’t even write a lot, but I must have thought about each word for a long time while writing as the new year has already arrived. I started writing in 2022, but it’s already 2023 now.
Happy New Year everyone. In 2022, which has become last year, I was so happy to meet you for the first time in a while and see you up close. I will never forget those overwhelmingly happy moments.
I sincerely thank you for having fun with me and being the closest to me for another year! I will run forward without being lazy again this year! I’ll do well.
Happy New Year again, UAENA. When you wake up from your deep sleep, it will be a new year. Sleep well. I love you."
Jong Suk's letter:
"Hello. This is Lee Jong Suk.
I wasn’t able to share a separate thank you message to fans after receiving a big award, so I am belatedly sharing this letter.
I am writing here for the first time in a while...
I’m so sorry for surprising you at the end of the year. Thank you to the fans who yelled and cheered for me at the Drama Awards so I don’t lose my confidence.
What I really wanted to say to all of you is that I am so thankful to my fans who send constant love and support to me, who is still lacking a lot and still shy even though I have gotten older.
I forgot these important words because I became more nervous as I spoke. Sorry and thank you once again.
And you must have been really surprised after seeing the articles yesterday... About that friend from the articles today.
We first met when I was around my mid-20s, and it was big beyond puppy love, but I had regrets as it couldn’t be achieved.
We were friends for a long time, and now it turned out like this.
Um… I want to explain this well...
How should I say this... Even when I was working hard living my own way, she was a strange existence who always took up a corner of my heart. I think my fans will understand if I say that she was like Kang Dan I (character in “Romance is a Bonus Book”) to me.
She is an amazing person who helps me with my path and concerns of life as a friend, is someone I can rely on, is younger but sometimes feels older, and is like a grown adult but also someone I want to protect.
Now she makes me want to be a better person.
I have to introduce her well, but this is also the first time for me, so I’m worried that fans might have been really surprised and maybe a bit upset.
I hope you will watch us with warmth.
I was so so thankful for the love and support you sent during this year when so much happened, and I was so glad we got to meet again. Happy New Year, and I love you always."