I’ve been with my partner for over 3 years, we have a house together and he has 2 children from his marriage. We don’t have any and no intention to. He left his marriage, initially it was mutual but quickly turned to his ex wanting him back. This was 4 years ago. Since we then every wedding anniversary she sends him a message about how this time xx years ago I was getting ready to marry you and this isn’t how I want life to be, something similar was sent at Christmas. She has a partner and house together also. My partner doesn’t reply, but also doesn’t shut her down. She also reacts badly when we are away on holiday together or when we bought our house together. I’m getting fed up of the lack of boundaries from her (always been an issue with her) and my partner not putting her straight, however the only contact he’s interested in is about their children and he’s really open about what she messages (it used to be way worse in the beginning). Am I over reacting and she’s just someone who can’t get over her ex or should this be brought to a head - her partner clearly doesn’t know about this and how she still messages these things to her ex husband.