I apologise now as this will be a long thread...
I've been with my DH for 20 years now, married for 15 years. My MIL started being awful the minute we got engaged, saying, "You're taking my son away from me you are."
She doesn't have a good track record with relationships. She divorced her husband in the mid 1970's, and has not formed an adult relationship since. When her SIL of over 60 years died, she didn't pass on the message about her funeral as, "She's not family, she's only married-in." Her daughter was married for about 18 months & lived within walking distance from home. Once when she was ill & her husband & his mum rushed her to hospital, when my MIL arrived she said to the nurse, "I'm the mother, get HER (SIL's MIL)out." No wonder things didn't go smoothly there then!
The only xmas present she's ever bought me on my own was an uncut copy of, "Don't marry her F* me." Every birthday for the last 15 years I've had a nasty card from both MIL and SIL. I dread opening them, one year, my DH opened them & threw them away without me ever seeing them, (which was lovely). My MIL is cross with my DH for marrying, "Out of Liverpool." She has nothing to do with her only 2 grandchildren - sending cards & money, she doesn't phone them to with them a happy birthday and at xmas, my DH phones, she talks for about 30 secs max,doesn't want to wish the kids a merry xmas, then goes, being, "busy getting ready for Church." (She goes twice every Sunday)
Both DH & I work very hard, my MIL was very angry when I graduated from uni saying, "You're taking the jobs from the men, you are." Although she has lived on her own for the past 20 years, she likes to boast that she lives in a 3 bedroomed 2 bathroomed house but has never worked a day in her life.
So, I could go on & on, (oh, when we got married, she had the photographer take special photos of just her & her 3 "children", then refused to buy 1, my parents paid her bill - on top of paying for our wedding).
Sooo, we haven't seen much of her since my op to remove a breast lump was successful & benign, when I told her she replied, "More's the pity!" (A real Christian then). And the 1 person in my DH's family who has always been OK with me is DH's brother. He has a lovely new partner, who has children from her previous marriage, they have bought a house together, are really happy, & have invited my DH and his family (IE: me & the Kids - I choked with tears at this), to my BIL's 40th birthday. I really want to go to support them as a couple, also I like my BIL, he's lovely and I know my DH wants to go. However, there will be the gremlin, her daughter & spinster sister in the corner - it will be like walking into a nest of vipers.
I really want to go, I want my DH & kids to have contact with BIL & his new partner & their family - it is important that we build a family history together. I don't want BIL's party to be blighted in any way - it is HIS day, but I don't want to be the sacrificial lamb led to slaughter either.It is silly, but I'm having nightmares over this. Any suggestions/advice please?