Am I wrong for telling my buddies ex wife that she only has her self to blame for him not talking to her any more?

At the beginning of the year, my buddy Tom had his divorce finalized. It was a messy and very toxic situation on both sides. He and his ex, Brittany, divorced after he found out she had a long-term affair with one of our other friends, Steven.

Tom is normally a level-headed guy, but the affair and subsequent divorce broke him. I think if it weren’t for his two boys, he truly would have ended it.

They have 60/40 custody, with Tom having the majority. The “problem” now is that he hasn’t spoken to her since the divorce was finalized. He does pick up and drop off the boys but doesn’t speak to her at all. He ignores her at the boys' events and doesn’t talk to her family.

I don’t think it’s wrong; it’s not like he talks trash about her in front of the boys.

Things came to a head when he asked me to pick the boys up since he wouldn’t be able to. I told him okay and went to pick them up. When I got there, Brittany was there as expected. I said hi and called the boys over. After they got in my truck, she asked if she could talk to me. I thought it was something about the kids, so I agreed.

Before I knew it, she broke down crying, saying she knew what she did was wrong but that he (Tom) couldn’t be cruel like this. She said he was ruining the last bit of stability the boys had, and her family already hated her for the affair, especially her dad since Tom was like a son to him. I told her to really consider the situation, especially since she and Steven were in a relationship—the one that ruined the boys' home wasn’t Tom; it was her.

I told her to save her crocodile tears for her "fuck toy" and leave me out of it.

I don’t think I’m wrong, but my girlfriend thinks Tom is taking it too far and says it wasn’t my business.
Am I wrong for telling my buddies ex wife that she only has her self to blame for him not talking to her any more?
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