^^^Johnathan had all these characteristics as well and wasn't gay.
What gay character was on Angel?
Lorne was a demon and owner of a night club but it was never proven what his sexuality was one way or another. His flamboyance fit the type of job he was in much like many big city club owners who aren't gay.
It was also first believed Wesley (when he was on Buffy) acted gay, same for Giles due to their manerisims but they weren't, were they?
Joss did a good job showing ones mannerisms doesn't define ones sexuality. It is we the viewing audience that holds onto such stereotypes.