How do I deal with this situation? I've known DSS2 since he was 10, he's now 24. Reasonably close, never had a fallout and always got on fine. He's had a gf for 18 months. DH and I aren't overly keen as she's a bit possessive, but it's his life, we understand young love etc. Bought gf a nice Xmas present, gave it to DSS to pass to her, didn't hear anything from her. Bumped into them after Xmas, she thanked DH then but not me, but not only that, didn't speak to me when I spoke to her twice, wouldn't join us in the aisle to chat. She acted as though she was going to catch something from us. Not sure how to take this forward but I don't think I should just let it slide. PS the gift was a nice obviously tasteful chosen by a woman gift. I feel really hurt as we've welcomed her into our home, for meals, bbqs etc. Any advice please?