There's always the unhealthy and ill-advised "be a dick to them" method.
Kidding aside, I like to see whether a relationship works out in the long run. If I don't see a possibility that it'll last, then I lose interest in the person meteorically. Like, if there's little chemistry, if the person isn't responsible, if the person is more interested in excitement than commitment, if the person is dumb, or Hell, it could be because of my physical circumstances as well. I get to know them platonically before I pursue them as a lover. After all, why be in a relationship with someone if you wouldn't want them as a friend? I guess I just know when to not go for something out of pure excitement and interest, and just go with something that has potential. It doesn't lead to a lot of relationships, but I invest that it'll lead me to a happy one.
Kidding aside, I like to see whether a relationship works out in the long run. If I don't see a possibility that it'll last, then I lose interest in the person meteorically. Like, if there's little chemistry, if the person isn't responsible, if the person is more interested in excitement than commitment, if the person is dumb, or Hell, it could be because of my physical circumstances as well. I get to know them platonically before I pursue them as a lover. After all, why be in a relationship with someone if you wouldn't want them as a friend? I guess I just know when to not go for something out of pure excitement and interest, and just go with something that has potential. It doesn't lead to a lot of relationships, but I invest that it'll lead me to a happy one.