Is 17 and 23 bad?

My coworker is 23 and the first times we started talking he asked for my number cause he wanted to get to know me. He knows the consequences but he says i do not look like im 17 and he wants to get to know me until i turn 18 which is in 2 months i dont know how to see this though bad or good. He is a very nice guy every coworker talks good about him hes always saying hi to me gives me side hugs at work when he greets me and he is not lowkey about it like some older people would be i need advice on this. We have hugged a couple times from the front and i swear im starting to like him we are always on facetime we play video games he text’s me everyday hes always complimenting me and we are going to hang out this Wednesday after work but yea he says he wants to get to know me right now hang out and stuff as friends until im 18 we can be something he says

He said “ i wouldnt talk to you if you looked young but you look older “