Disclaimer: The thoughts expressed here are purely my opinions. I apologize in advance if I offend anyone.
I have absolutely no qualms with any sexual orientation. It’s fine to be asexual, bisexual, heterosexual, homosexual, pansexual, anywhere in between, and at either end of the spectrum.
I am also well-aware of the fact that many of the character slash pairings for which I read fanfiction feature canonically heterosexual characters, or characters whose sexuality isn’t stated in canon, meaning that they are not necessarily homosexual.
I also fully support close friendships between any characters, male, female, or otherwise, even if that closeness could sometimes be taken as them being in a romantic/sexual relationship, but they are not.
This is the part where I take issue. If a male and female character are in close contact on a show, it is assumed that there is a strong possibility, possibly even an inevitability, that these characters will, at some point, get physically intimate, romantically involved, or both.
What irritates me is that if two male characters or two female characters are in close contact on a show, where that closeness is similar to what might normally be featured between a male and female character, it is assumed that there is absolutely *no* possibility of them getting together.
This bothers me on two levels. One is the fact that this means that a strong, non-traditionally close friendship can exist between two males or two females, but not between a male and a female. The other is the fact that two same-sex characters getting together will be consistently hinted at, as much as, if not more than, opposite-sex characters getting together, but the same-sex characters will never get together.