NC as this is outing and long so I do apologise in advance!
We're getting married soon (yay) but DP is feeling like shit over his stag do.
Backstory: MIL and FIL are separated. FIL left MIL when DP was a young boy and moved away. FIL returned a few years later and remarried. He married DP's best friend's mum. So DP's best friend also became his step brother as well as other step siblings.
FIL left his wife a couple of months ago for another woman (was having an affair for a year) causing a lot of upset obviously.
Now: DP's best friend/step brother is his best man and organising the stag do. It's DP and his 2 DBs, cousin, friend and 2 step brothers going. A young lads night out. DP has said to his DF that he doesn't want him to come. This is because he'd feel on edge all night incase anything kicked off. At the end of the day FIL cheated on the best man's mum so adding alcohol to the mix, it might not end well.
FIL seemed to take this well and DP is going to go for a few drinks with him and his grandfather another time before the wedding. Tbf the best man and his brother said they had no problem with FIL going but DP would rather not be on edge all night.
MIL (why its her business I dont know) has phoned DP this evening saying how upset FIL is. How DP is putting his step family before blood etc. I've reassured DP this isn't the case. Apparently they should all just get over it, easier said than done when alcohol is involved.
Was DP BU not to invite his DF? I don't think he is but after speaking to his mum he's really upset and doubting himself 