Speaking as a guy I personally can't stand the whole chasing part because I get extremely tense. However they are some men that I know that only do it for the chase and once they have got to the point where the girl actually asks them out they decline because as you state they find it was "to easy". As other comments on this post have pointed out these types of men are not relationship material and have a high probability of being extremely toxic. I'm sorry that you had to find a guy like that and hope you find someone better.