For the past year I have been categorically opposed to being in any form of a romantic relationship. I don't want to have to think about another person when I make decisions, or be expected to see the other person on a regular basis. I've casually dated people I have met at college parties, but haven't let it last more than a couple of weeks. Oh and it hasn't been exclusive.
Recently I met someone. She is best friends with a mutual friend of ours, who informs me she is attracted to me and almost certainly wants a relationship. I've been hanging out with her; she has slept over a few times this week. I'm loosely considering exclusivity with her, and was hoping that spending time together would help me decide. The ethical part of this situation exists because it's entirely possible I wont want to date her at all, but in the mean time I feel like I'm kind of leading her on -- getting her hopes up, if you will. I'm definitely into her, I just don't know if I want to date her.
What is the right thing to do? Do I continue to be indecisive, knowing that there is a chance I may want to embark on a relationship, all the while knowing I wont want anything more? Or do I stop everything and tell her this?