Okay, Q. Pretty much the entire forum thinks its stupid, but you have already decided what you want to do. The rest is just excuses. You don't really want our advice, which is to not go there. Sadly, you reinforce my opinion of silly young women. The temporary satisfying of hormones won't be worth it, but I guess single moms get lonely and desperate too. Good luck.
EDIT - As for the company whore thing, you don't get it. It doesn't matter what the actual situation is, I am describing appearances. If I knew a girl was having stalker problems with a guy from the company, and then I see she's dating someone else in the company shortly after, I would certainly consider the possibility you did *something* to lead the first guy on. Right or wrong doesn't play into such things, only the fact that there will be fallout from the decision.