Let me give you a bit of an analogy. Remember the story about The Grasshopper and the Ant? How while the ant spent all his time working hard, making sure he was well provided for, being responsible while the grasshopper dicked around and did whatever he felt like? Then, winter came, and the grasshopper's completely fucked. So he comes crawling to the ant, who, depending on the version of the story, either took him in or said "go die in a hole". The grasshopper is a woman, and the ant is a nice guy. The women run about doing whatever and whoever the fuck they feel like while the nice guy does his best to be productive and prepare for the future. Then, all of a sudden, winter will come. The woman will realize she's gotten older, or her douchebag boyfriend will break up with her, or something like that. Then where does she turn? She comes crawling back to the nice guy, who, being a nice guy, will be there for her, be comforting, let her ***** and moan about her ex, or how much everything sucks for little old her. He'll take it and he won't complain, because he's a nice guy. At this point, one of two things will happen. Either she'll finally realize it's a bad fucking idea to date douchebags and assholes and might get together with him (this usually only happens after age 30) or she'll friend zone him so hard his balls fall off, then run off again next spring (new douchebag or old one takes her back), only to do it all over again the next year.