I think my (34m) friend (36m) is really mean to his wife (29f)

I (34m) have been good friends with A (36m) since we were in high school. He’s been with C (29f) for 7 years, married for 4.

A is normally a really great guy, but since the pandemic started he’s had a bit of a mean streak, mostly towards us (his friends, all male) and his wife.

When the pandemic started, A lost most of his work as a contracted employee. His wife works in a scientific field that works closely with the government, so she never missed a day of work. After a few months of A being stuck at home he was finally able to start working again. It was around this time he started making jabs at C about her career. Saying she made less than him and how she should just quit and be a stay at home mom (they had been trying to get pregnant at this point, they now have a one year old).

A has told us a bunch of things about C that he has never divulged before- they are normally a very private couple and don’t share dirty laundry. Some of the things he has brought up in the last year are: -C was being dramatic during the birth of their child. She called it traumatic and he said she is over reacting. -A will send C memes and “jokes” that are the polar opposite of what she believes in. (Think one of them is pro life and the other is pro choice). -A will start talking loudly and over C if he starts in on something she doesn’t like or agree with when she asks him to stop. -he “joked” about her being a (word for a lesbian that starts with “d”) because she came out to him as bisexual years ago.

And these are all just the things I’ve witnessed or heard from other people. However it recently came to a head when A told us that C flung his phone across the room in a rage after he mocked her for being gay.

A is saying she’s losing touch with reality and that she’s crazy. But almost of his friends are very clearly seeing that it’s a “him” problem and we are not sure what to do about it. A few of our wives/gfs want to reach out to her since she’s clearly going through something. But I’m not sure what to do for A. He is also clearly going through something but how to I approach him about it. I almost want to say something like “you clearly don’t seem to like your wife, why don’t you just leave?” Any advice would be appreciated.

TLDR: my friend has been mean to his wife over dumb things and claims she’s the crazy one.