Why most fangirls like yaoi / boys love?

[just_curious]

I don't understand them...what's so fun about watching romance between male-male couple? =_=

 

[MUFFIN]

Well I guess the same could be asked, that why most fanboys like yuri/girl love?

Personally I'm not a fan of either, but I do have friends who are, and I'm not sure if there's any proper way of explaining it...