Hmm, that is weird that she would be ignoring you all of a sudden. Were you guys just hooking up casually or were you open and clear that you had feelings for each other? You both may have wanted something different out of this relationship. That’s very sweet that she makes you happy. However, saying life would be pointless without her is silly. If someone doesn’t want to be with you then oh well. Do not put all of your love into a person that does not meet you half way. Who knows though, the only way to figure this out is to talk to her about it!