Is age really just a number?

So I met this guy at work and he is like family to my boss but he’s way older than me. When I first saw him I was like damn he’s find but I knew he was older. I went to his house the other day for drinks with his cousin and I invited my friend to tag along. She got off an hour later and he went to get her. I’m on some pain killers and I always forget to eat so I got really messed up and threw up like 5 times. (I only remember one of the times). He took me to the bathroom n patted my back and cleaned me up and gave me bread. He took really good care of me. So today I went back over and we ate dinner n watched a movie. I really enjoyed myself. He’s a gentleman n has a really nice house and knows how to cook (waiting for him to cook me sum). I’m really starting to feel him but I’m 19 and he’s 39 with 2 kids. Idk how to feel about it. But I really like his personality and I’m very attracted to him. What do y’all think I should do? Is he too old? Should I just leave him alone?