We live a good 4 hours away from DH's family. I go and visit when DH wants to go, but find the visits incredibly stressful. DH tends to regress, MIL parrots in DH's ear about things which causes problems between us and then there are the digs and comments from MIL to me about me which are supposed to be "sarcasm / humour" but I found downright rude.
Earlier this year, SIL asked whether her and her son could come and stay with us for a week for a holiday in the summer break. I initially said to DH that I felt a week was too long and maybe 4 days would be better for everybody. This didn't go down very well with anybody and I was basically overruled by MIL who told DH that SIL has depression and a break would do her good. So they came to stay with us for a week.
SIL is depressed and very sensitive. DH works long hours and most evenings wasn't home until 7pm. Whilst I empathise that she has depression, we have had a lot of stressors ourselves the last few months and I asked DH to relay that they would have to really take us as they find us when they came to stay (I've had a health scare - awaiting test results and we've had a couple of financial stressors). SIL and I have always had a somewhat difficult relationship. She is a year older than me but we are completely different people and personalities. We don't really click and conversation is often stilted and awkward. It got to the point where I felt awkward and uncomfortable around her because whatever I said she would take offence at. The last evening of the visit we ordered take out. After the meal SIL vanished. We sat waiting for her to come downstairs, but she didn't re-appear. We just assumed she had gone to bed. After a couple of hours I decided to go to bed myself. As I got upstairs, SIL came out of the bedroom and asked to talk to me. She referenced that from her perspective it was evident DH and I have a "confident relationship" but she doesn't have that confidence and therefore didn't have the confidence to sit with us. I said I was sorry she felt like that and went to bed. I didn't really know what else I could say.
Before they left, SIL asked if she could come for 10 days next summer and asked me if we had got along okay whilst she had been there. Again, I didn't really know what to say and just said I didn't know what our plans were for next summer and that as far as I was concerned we had got on okay, but really thinking we hadn't with the awkwardness, her taking offence over silly things like star signs etc.
Last week we had the MIL come to stay for a week. When DH was at work, she told me that she was very disappointed that SIL had not got the support she needed from me and DH whilst she was down referencing her depression. This was somewhat of a red rag to a bull and I told her that I didn't realise we were meant to have been offering support. MIL said she is unwell with depression and the lack of support we showed around this wasn't helpful. I told MIL that I didn't really have the headspace to think about supporting when I was waiting on health tests to come back and we had our own difficulties going on.
As the week progressed, MIL made more and more comments to me. In the end I decided the best thing was to keep out of her way. We were then going away for a long weekend so I decided two days before to start the packing. This was wrong as MIL parroted to DH that I was obviously avoiding her. This was the final straw after 2 difficult weeks and caused another argument between DH and myself. We never usually argue - I've realised we only argue when the MIL is around.
DH is now talking about us going to stay with MIL for October half term. I really really don't want to. I've previously suggested a hotel, but that causes more problems and upset.
I just don't know how to navigate this difficult SIL and MIL relationship. It is always so stressful.