This isn't probably the same thing, but my T has been on a kick lately too about telling him when I'm angry or frustrated with him. I'm not sure the whole reasoning behind it. He said it's okay to tell someone when something they do upsets me, and that it doesn't mean they're going to leave. That our "relationship" can withstand it. I've told him it's very hard for me to get upset with people unless I feel like they're not hearing me, and he hasn't made me feel that way.