should i date this older man?

ok im 18 and currently cosidering dating a 45 year old, we have tons in common, get along great, luv each other very much, and i just have such strong feelings for him…. but hes been married before and has 3 kids, two of wich are 17 and currently live with him. what should i do?? i really like him but im not so sure how this will turn out, and the fact that he has kids kinda creeps me out.

p.s. and i know what your all going to say, hes not a pedofile, so get that notion out of your head :)