"Four hundred years ago, a well-known English philosopher had an opinion about being alone. John Donne. He thought we were never alone. Of course, it was fancier when he said it. "No man is an island entire unto himself." Boil down that island talk, and he just meant that all anyone needs is someone to step in and let us know we're not alone."
And the point of the matter is that we can't help who we fall for, even if they are
completely wrong for you.