21 and 34

There's a guy who I lives upstairs from me and has been asking me out on a date. I'm 21. He's 36. And the first time we met was when I was 11. I was more developed than most 11 year olds. I had a period. I had breasts. He told me to hurry up and turn 18. He didn't groom me because we haven't seen each other since. I'm just don't know how to feel. Like if I should give him a chance. The age gap feels a little icky but I've heard other women say they have an age gap and couldn't be happier