indecisive or just plain dumb?

I don't know why my life has to be so complicated at times but I am seriously considering ending things with Flatmate! He seems to moan a lot about his girlfriend but he seems to be all talk no action and I just can't take much more of it. The annoying thing is when we chat I just get sucked right back in and I forget that I was even contemplating ending it. I just wish I could make my decision and stick to it. Grrrr.