This Is Why I Am Single - I Can See the Future

So I was at this pool party, where I struck up a nice rapport with this tall fella.  My friend Aynsley noticed that we were getting along nicely.  She asked, "So, you guys gonna go out?" I said it would be nice, but we have no future.  Sadly, I looked into the future and there was only trouble for us based on his size.  Certainly, when one looks into the future with their potential life-long mate, they see the bad times as well as the good.  Well, I saw the bad time when he got sick and I couldn't carry him upstairs to bed, I couldn't help him into the back seat of the car on the way to the doctor; I saw that I literally could not support him.  That, and we'd never have sex without two or three stacked phonebooks.  See, the real reason that we can't be together isn't because I can't lift him romantically over the threshold, it's because I can't get out of my head and not sabotage myself with doubts and improbable problems.  Don't get me wrong, I wouldn't say no, if he were to ask me out, but I couldn't initiate based on my ridiculous musings.    My mind works against me, This Is Why I Am Single.