I'll add another anecdote about a previous T: from a few years back:

I came out in the first interview with this one and asked her how she felt about GLBT issues, etc.
She said she understood the issue, "from the perspective of someone who has been in a long term partnership for many years." I took that to mean she was gay also. A while into our time together I realized she wasn't at all. I felt misled and somewhat pissed about it.

I suspect that she had said that in effort to put me at ease about her not being biased, but she didn't need to do that. In hindsight I felt that she mislead me to avoid her own lack of awareness around the topic and to keep a potential client. In any event, it was disingenuous at the very least and somewhat ignorant to equate the two experiences as 'the same'.

Now, fast forward to today: Contrast this to the couples counselor whom my partner and I see together. She is a straight woman (married, grown children, etc.) She answered the 'first day' question perfectly by pointing out that while love is love, GLBT relationships have unique struggles (family, societal prejudice, etc.) that heterocouples do not. She didn't feel the need to say the equivalent of "I'm cool with the gays, cause I love too!" or some such nonsense.

No one should equate hetero/homosexual relationship as the same thing. The deserve to equal respect but they're not the same. Each have their own unique set of problems, advantages and disadvantages.