maybe I made a mistake in ending this?

[pretty_girl]

I have been with my man for just over a year. The first couple of months were INCREDIBLE! I truly thought we would stay together and possibly get married, however by about the 6th month into it, my feelings started changing. He started really irritating me, and I got to the point were I rarely wanted to be intimate with him. We broke up twice over the summer and then got back together. At first I thought we would work it out, but I never really regained my feelings for him again.
So last night I told him that I care for him but not the way he cares for me, and that I do Not want to hold him back from finding a woman who can give him the kind of relationship he wants. I truly want to be fair to him. (okay I am finally getting to the point here) So then why do I feel so bad, Like maybe I made a mistake in ending this? I am so confused!