It sounds like you have a lot of anticipatory anxiety. We can't know what is going to happen until we are actually there, in the moment and checking with the other person. Worry is about the future, which we can't know, so you might as well practice using your imagination to think of pleasant alternatives as the scary ones? It can take a couple of experiences where T is really helpful to get enough to counteract worries about negative things going to happen but when you get one where T does something good when you expected bad, hang on to that reality/experience and its story so you can help yourself not worry so much later.