Does anyone believe JK Rowling when she claims dumbledore was gay?

sorry but i think its all fake and attention seeking.i am reading deathly hollows right now and i have looked up some stuff on the internet that will support mrs.rowlings claims,sure she said he was.but i cant find any solid proof on that.the books and what stuff says about him,i just dont see anything indicating he was ever in love with grindelwald.but if it was true the latter did not return the feelings.it says in the book that dumbledore and grindelwald had a 2 month friendship then his sister died and grindelwald left.so i find it hard to believe that love can happen in 2 months.maybe its possible but i just cant see it.