There is that potential, yep. There is also the potential he genuinely loves me, and will stick with me because he knows he'll never find someone who loves him more or treats him better than me. Regardless, I'm not going to intentionally hold him back in life out of fear he may leave him some day, because if anything, doing so will only help ensure he leaves me in the future.
Yeah, being in love like this can be scary at times, but it's worth the risk. What's the laternative? Live alone, eat crap microwaveable dinners every night, spend my time chasing down broke students and rice farmers for a cheap fuck? Who would want a life like that? Well, aside from probably 80% of the membership here, who would want a life like that?
I don't think he'll leave me though. He loves me too much, and I treat him too well, plus have raised his desire, ambitions and possibilities for this life immensely. That's not exactly something you forget. Besides, he blames himself for me going blind, so that somewhat helps too, as crude as it sounds.