Married to DH for 22 years and recently widowed. We have a DD age 14.
DH had a DS (now 30) from a previous relationship (never married) where he casually dated a woman in Wales long distance for three months (he lived London) who fell pregnant. He moved there to join her when she was 8 months pregnant to make a go of it. By all accounts it was a disaster but they stuck it out for five years. She then admitted he was not the biological father but he was committed and a decent man and kept the role of dad when they separated. He's never told anyone apart from me and his own dad, who passed away. The ex has also passed away.
If you're still following, here is the issue. The DS is a nightmare. Very bitter and destructive and obnoxious. I quite frankly want nothing to do with him but he insists on contacting DD as it's 'his family'. DD isn't that keen but it's not top of her priorities at this age I suppose. Anyway the DS has asked to come for Christmas. I know it sounds awful, but I do feel like telling him DD isn't his sibling and to leave us alone and just put a final end to it. I can't see what she gains from this other than dependency from a destructive man. This isn't her secret or burden or issue to take on.
AIBU to make a clean break?