I know your first thought is probably "wait...what?!" and then you would go on about how crazy I must be however I have heard more than once of couples breaking up because one of the partners feel it is "Haraam" (forbidden by God) and some go to the extent of abandoning and distancing themselves from any non-straight friends and acquaintances.
I'm sure religion isn't the only reason, some people are so scared of their family members finding out that they abandon their boyfriend/girlfriend when the relationship gets too serious and in this case force themselves into heterosexual relationships.
So what do you guys think? Can a homosexual person, be male or female, be homophobic?