I don't really have a problem with it. Even if I go only after the ladies, I understand that this approach gives everyone the same options, with is a good thing.
I also understand the ones that complain about the realism of this approach. After all, in RL we might encounter and fall for people that are of a different sexuality than we, and that sexuality might lead to them not being interested in us because of our gender (I'm making an abstraction from all the other things that might cause a person to develop a crush on someone else like personality, moral code etc) or encounter people that feel attracted to us, but do to our sexuality, It's posible that we'll never interact in a more than platonic way with them. In real life things like this happen. You might be rejected or reject someone because they are not of the gender you feel attracted to.So yes, their complains are somehow justified.
Still, this is a video game and this lets the developers to cheat a little and do things that in real life wouldn't be that easy and I think this is a good thing as long as everyone gets an equal amount of opportunities.
Either you give everyone, no matter their sexuality, the same number of options or you go on the 2/2/2 route. No mixing of the two please.