Going to keep this as quick as possible and try not to be too outing.
bf has an ex broke up 18 months ago was together 5 years. No kids and was not married We have been together around 6 months recently met his family but still early days. We get on really well.
his ex has been invited to his sisters wedding at the end of year. I haven’t which is fine as new relationship and the wedding is small and they are having 30 people. She will be staying at bf for weekend as she lives accross the country and says she cannot afford a hotel. She has asked me not to be round that weekend as that would make her uncomfortable (can’t anyway as it’s my weekend with kids) but I still feel very uncomfortable. I have said it is slightly strange how she has specifically asked for to not be there and also wants to go to a very intimate close family wedding but he has said that it isn’t really on him in regards to the wedding list and he doesn’t want to be rude saying she can’t stay. I am thinking this may be a deal breaker for me as it feels like crossing a boundary or am I overthinking.