Do some girls like guys who are a wimp?

I think I'm kind of a wimp because I can't come up for myself very well, although I look strong and I have strong arm muscles, but still I like girls who take advantage of me..Idk why..I don't know if I will ever find a girlfriend because they all seem to want the same thing from a guy..I'm actually all around a nice and funny guy but if someone makes me angry I'm furious and dominant lol, but I'm never like that to girls, is there something wrong with me? lol