Cliff notes: Officially divorced for about a year now, have a 3 & 5 year old. She cheated amongst other imo nefarious things. 50/50 custody we alternate week on week off.

Initially my 5 year old son did ok with it. He’s always been a bit clingy to me I think because I was his primary caregiver when the 3 year old was born and my ex wife at the time focused on the new baby.

Lately he has been acting out quite a bit against his mother. He hits, tells her he hates her, tells her to move back in with me and just doesn’t listen in general. My ex called me for help and thinks he blames her for breaking up the family (well duh). I don’t say anything negative about her to my kids. She wants me to talk to him and tell him that it was a mutual decision that we thought was best for all.

I’m really uncomfortable with this since it was in no way mutual. She was having an affair and was in general REALLY awful towards me and then during the divorce tried to essentially steal money. I just don’t think I’m capable of doing the “mommy and daddy thought it was best” thing here. I will coparent peacefully that’s not a problem at all but have a really hard time with her thinking I should back her up on this.

For the guys that have been through similar situations, how do you handle this? My son is great with me, no behavior issues other than difficult drop offs when he knows his mom is going to get him. This seems like her problem but also do not want my son to spiral.