DH has a former colleague who, TBH, neither one of us have ever liked much - bit of a social climber, one-upmanship merchant. The other day we received this awful invite from him and his DW - to their 40th anniversary party...it shows on the front two ancient teddy bears (presumably the happy couple's own) in an embrace with some "cutesy" remark like "after all these years we're still cuddling..." On the back a photo of the two of them in matching hiking outfits. Even DH who is far less judgmental than me found it toe-curling - they're in their 60s for God's sake. He even said, "oh God, it'll be me-me-me or should I say us-us-us if we go".
Problem is we know roughly who the other invitees will be and fear it will look a bit "obvious" if we don't go & a bit awkward for DH as he still has minor professional contact with the guy.
Any ideas re wriggling out of it gracefully? How do you deal with these "look at us aren't we marvellous" couples?