“And will try to occupy myself as best as I can”
This is a sentence to reflect on. You make it seem like this is something new, you’ve been left out and have nothing to do while everyone else you know enjoys themselves. I appreciate it might feel like that, but that’s not the reality.
If my kids were having a party and I had no other plans for that weekend I could honestly think of a million things to do. And most of some of them would involve being at home by myself - sorting the camping stuff, googling interesting things, going through my wardrobe to see what doesn’t fit, reading, and on and on. It is a bit concerning to me that your mind doesn’t immediately go to ‘ooh at last I have time to crack on with that random project I wanted to do’.
There are threads here on Mumsnet about empty nesters, loneliness, new hobbies, how to get more friends, voluntary work, how to ‘work on yourself’ as the Americans describe it. I think you’d really benefit from riding some of these threads. Or start your own if you’re too overwhelmed by it all.
And with your husband going away for three days every week, when do you get time together? Is this something that needs some improvement? I know he has caring responsibilities, but can some of this be outsourced to carers? What does he do at his Mum’s? Does she not want a bit of time to herself too? My gran had carers and she really liked them. And she knew when we visited it was just a social call, we were under no obligation to visit but did so because we wanted to. He has a wife and presumably wants his wife to be happy too.
And lastly, just namechange if you want to forget all about this thread, it’s really easy.