Just a question and I don't know if this is considered DBing or anything... but are there things you DO feel safe in sharing with him, and getting him to share with you? As you start to rebuild trust and intimacy, of course you are scared and sad. And what you're both going through right now is super heavy and difficult, and maybe you both aren't ready to share where you are with the other person who figures so prominently in why you are feeling this way. I just wonder if you can start small, talk about important things that aren't R-related, relationships with colleagues or parents or whatever where you can begin to rebuild the connection between the two of you?
Have fun out with your friends-- relax and enjoy!
Me (46) H (42) M:14 T:18, D9 & D11 4/19 - 12/19: series of escalating BDs 9/20 - present: R and piecing