Attracted to older men?

i just can't figure out why i'm so attracted to older men like around 20-40?! it's sortof freaking me out because sometimes it's teachers, and right now it's a 30-year-old guy at my theatre who's married and has a baby on the way! He's just always so nice to me and we've spent a lot of time alone painting and doing construction work for musical sets... he always compliments me, hugs me and puts his hands on my shoulders, sometimes grabbing me in a playfull way like to try and scare me. i feel like he gives me special attention. he's good looking, and we have so much in common. he's EVERYTHING i want in a guy. it's scary thinking about it, but i can't stop thinking about him. obviously i would never tell him how i feel, but i guess i'm asking what i should do at this point because it's bringing me down! i'm 17 my the way