how would SHE feel if I became annoyed whenever she talked about my Dad too frequently?! 

Well, for one, your dad is (probably) real. That woman is a saint to listen to you go on and on about your pretend husband.

Go outside, do some jumping Jack's, touch grass and then meet a real boyfriend.

I know young people can get weird crushes that come and go but you couldn't find someone real to even like?