i think it is pretty common for people to start thinking about their t's a lot as they become attached to them. you think about them... and you feel kinda good. you struggle a bit and you think about what they would say and you feel better. i think it is part of internalising the good role model. starting to internalise feeling cared about. i think it is a good thing and it shows that therapy is working.

that being said... i think it is important to moderate things so one doesn't end up idealising / so the fantasies don't get too intense.

i think that it is perfectly fine to talk to your t about your attachement and your fantasies and your feelings BUT THAT BEING SAID therapists differ in their willingness / ability to process such things. most therapists... i think they would feel flattered really. some therapists... might feel a little freaked out. especially with sexual fantasies (which are fairly common too and while therapists SHOULD be able to handle them... some can't).

all this being said... rationally sure i get it.
in practice.. no way in hell would i ever talk about this stuff IRL. no way in hell.