Mhm, when they start seeing you as a female the relationship dynamic changes, which is exactly how you would expect it to be. I don't see my male friends differently but they do me, so like, my one friend who doesn't really have close female friends and just has a casual flirty relationship with some women he knows, when he happens to see them, well he and I aren't going to even have that flirty thing cause that would be weird weird weird, so I mean we're still friends but I never hear from him any more. And it wasn't that he wasn't supportive, he was one of the most supportive and had one of the most wonderful and unexpected reactions to me when I came out to him.
Other male friends, it's similar. You get taken out of the guy friend box and get put into the female friend box, and then they treat you accordingly, and it's kinda the way it should be. You'll also see you relationships with female friends change, only those get much closer and deeper rather than the other way around.
Well that is how it has been for me anyway.