/soy/ - Soyjaks

I don't know why I'm posting this here but my other options are basically 4cuck r9k and preddit, neither of which sound particularly appealing, so hopefully nusois can give some good advice. Anyways, a few months ago this one girl basically initiated a relationship with me. We knew each other from work and she reached out to me on social media. I wasn't I guess romantically attracted to her initially, but I messaged back and showed interest anyways, both because I think being somewhat of a 'cel clouded my view and because previously I have had crushes on women that only developed after spending a lot of time with them platonically. Now we've been sort of dating for a few months. I like her as a friend and I think she's a great person but I am just not into her romantically. I feel like I should try and break things off responsibly, but I would feel horrible doing that, but I also feel horrible and like I'm leading her on if I don't. She also told me recently that she liked a guy for two years but he turned out to be gay which makes me feel even worse about the whole situation. I don't know what to do.