You leave out details about the type of sex or relationship you have or want.  

You feel nervous to talk about exploring your gender outside the binary. 

You notice that your therapist gets slightly anxious or steers the session in a different direction when you bring up your queer identity directly. 

Your therapist is overly loving of you as a queer person to where it actually seems condescending or infantilizing. 

Issues that you bring up are reflected in a heteronormative way - i.e. monogamy prioritized and outside sex is cheating, marriage and kids as end goal, bio family over chosen family, etc.