DB and his wife (been together for 15 years) with 2 DC are my neighbors. In May last year DB decided out of the blue he wanted to separate and he left the family home. Asking me to please be there for SIL and his DC which is ofcourse what I would do naturally, but he asked me anyway.
I and as it turns out everyone was suspicious that there must be a 3rd party involved and a few months later DB’s love of his life colleague from another country moves to our country and DB and her move in.
I realize this isn’t my marriage and I cannot judge DB. But he is furious with me for maintaining contact, my friendship and support to my SIL and my niece and nephew.
He has lashed out at me because I haven’t met his new lady yet. I was out of the country for 3 months and since being back have had Covid so not ideal.
Aibu to continue my friendship with my SIL? I adore their children too and they’re my neighbors.