Name changed as very outing.
I have a very good friend, been with me through lots of life's milestones, always there when I've needed her. Now I feel like the worst friend as I can't be there for her right now. Her ex has been arrested and remanded out of the blue, and turns out he has been caught in an undercover online sting and arrested when arriving at a house to carry out child sex abuse that had been planned online with an undercover police officer. She's in pieces and is verging on suicidal, but wants to stand by him. Has visited him on remand, is listening to his excuses and even justifying that there wasn't a victim so not that bad. I've said no, I can't support her in this, and that despite not being convicted yet, I want no part in anything or anyone involved with him. When they were dating, she brought him to my house and to watch my son in a school event. She seems confused why that is upsetting me. I feel guilty to desert her when she's suicidal, but I can't play any part in this. (She has other MH services involved).
Please tell me I'm not being unreasonable, or if you think I am, explain why? His shitty choices have ruined a great friendship, but I'm more upset about how poor her boundaries are with this. This is no doubt due to her mental health, but I can't see a way to support her that doesn't involve listening to her making excuses and down playing what he's done.