life lessons and love questions

In my 27 years of lovelessness I have learned many things. I have learned to accept rejection, I have learned to not expect much, I have learned that love sucks if it's not reciprocated. I have also learned, by virtue of so much hurt, to always find a reason or way to not have romantic or sexual feelings about a girl in case the need should arise...and I have succeeded in that for many many years now and have several would-be-girlfriends-if-only-they-liked-me-like-that friends as the result.

...but what if the only thing that you can find to grasp onto is that you're scared of ruining and losing the friendship? What if you just cannot find a single thing wrong with a girl? What then?