Why

Girls for some reason are horrible at choosing boyfriends. I am apart of this statistic. For some reason whenever I decide on a guy they either treat me like shit and ignore me after 3 weeks, or they suffocate me and I attempt to disappear off the planet. This. boyfriend. is. now. apart. of. this. cycle. He's moving so he just stopped caring. Does this mean I should stop caring too? Even though all he does is give me butterflies.