I am sorry you are struggling. I would be more concerned that your fiancée isn't comforting you than about t. Personally I would be upset about his behavior way more than about t. He is your primary relationship not t.

I don't seek comfort from t. I am not in therapy for that. I would be alarmed though if I felt she needs to be main provider of comfort rather than others especially touch.

I would certainly want to explore in therapy following issues:

what does this need of comfort and touch signifies? Why isnt your romantic partner supportive of you? What is missing there? Why do you seek physical touch from t rather than in your primary relationship? Can you be comforted differently? Etc I am not asking you I am saying you should talk to t about all of this
IMHO.

She might not want to introduce touch because she knows what happened with ex t

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