It's like what comrademoomoo said in your other thread: you're probably projecting your fears onto your T. I do that too. Like I always worry that she thinks I'm gross and disgusting when we talk about certain things. But that's me projecting onto her how I feel about myself. I also have fears about her leaving me because that's what everyone has done in the past. But in our relationship, she's shown no signs that she's going to leave me. It's my fear projected onto her.

These are great topics to bring up in therapy. As L would say: all things you bring to therapy (fears, pain, struggles, happiness, joy, longings, everything) is an opportunity to grow personally and within your relationship.