I think all t2 is saying is that things are going to be different between you and her than they were with t1, and do you realize and accept that? So if you say to her, that's not what t1 would do in this situation, she's gonna be like, well I warned you we were gonna do things differently. It's not so much to badmouth t1. That's my take on it, anyway. If you want to know what specifically t2 didn't like about what t1 did, I guess you could ask. But she might not think it therapeutic to discuss it.