Why do nice girls date guys who are jerks?

[a completely inoffensive name]

Ok so heres the situation: so where I work there are two very pretty girls. Lets call them Red and Greene. Now, I had Green "in my sights." Then comes this other guy, who makes out with Red, and then the next day makes out with Green and now they are dating. Clearly such a person is a jerk, so why do such nice girls go out with such complete s?

Because he has a bigger package than you.