I wouldn't say love is necessary for survival, but i guess in some ways it kinda is because humans are very social creatures and it's hard to get them to do anything unless their emotions tell them to do it. In this case, telling them to reproduce. Honestly the only method i would have to prevent love is to stay away from people. And i mean all people. But of course, that would only prevent the actions of love. The inner feelings will still be there. And my beliefs on love is that it's a kind of mixture of all of your emotions, so that's why everyone who describes it calls it confusing or hard to explain. To put love really simply, it's when you think about another person before yourself, because in the instinct of your brain, that person is necessary for your survival. And it doesn't have to be a relationship. But if you're talking about relationships, it's pretty much the same thing only with some sex mixed in. And how would i deal with it? I'd honestly just not focus on the bad things in love, because they're gonna happen whether i like it or not. And even if the bad stuff gets to me, it's still worth it. Even though I'm completely broke and can't sustain a relationship. But just so you know, no matter how lazy you are, once you start to love a girl and she loves you back, you will suddenly start taking care of yourself. I was lazy as fuq and it happened to me lol O.o