If I can add something to this...
My previous T said at the beginning that he might have to cry "for me" first before I will allow myself to do it... My reaction was rather "no way! You'd really think so, I'll rather think that you're weak and pathetic"... Of course I didn't say it aloud... I only said "I don't think so" and he said "we will see", so we saw and none of us was right - he cried but I didn't but I also didn't find it pitiful...

However, with my second T it is different, I and have this bad feeling that if she starts tearing up, I might join her... But I know why... In my case it is that I do not have much feelings about myself, I'm rather emty as I've burried all emotions many years ago but... I do have a lot (too much?) empathy and I feel for others, when someone is happy I am immediately happy even if I have no reason to be, if someone is sad I become sad... So if my T starts tearing up and makes one of her very sad faces, I might feel so sad that I might tear up as well. Weird, huh? I'd cry because of T who'd cry because of me...