Firstly - MIL is my late DH's mother, not DP's mum. Also, DP is also widowed. He has 2 DS and I have one.
I have a huuuuge backstory of issues with MIL when DH was alive and since he died (4 1/2 years ago). I don't think she is "toxic" but I do believe that she doesn't think about other people. She acts with the best of intentions but doesn't like it if you don't agree with her ideas/thoughts/plans. When DH was alive, I'd leave him to deal with her. Since he died, I've had to speak to her about a couple of things - most significantly the way she reacted to DP, my DS (her only grandchild) and DSS's.
This resulted in a major fallout and an agreement to wipe the slate clean and try harder - for me to see her pov and her to accept that DS and DP have a father/son relationship (DS was a baby when DH died and knows no other father figure).
I've worked hard to maintain a relationship with her - for DS's sake as he loves her and she him. They have a lovely relationship and I would never want to deny either of them that. But I have in the past, and continue to, find it increasingly difficult to be around her. Some of this is due to stupid things - which I realise are completely my problem (like being annoyed at the way she feeds DS until he bursts - and it's all crap food - but that's a grandparents prerogative!).
One of the main issues I have with her is that she ignores me. We arrive at her house, she greets me and DS, does the polite chit-chat for 5-10 minutes and then promptly ignores me. She focuses so completely on DS to the detriment of anyone else in the room. If there are other people there, this isn't so noticeable as I'll chat with them but when it is just the three of us, I may as well not even be there.
I know that her attention is for DS. She just wants DS. FIL is the same (they divorced 25 yrs ago) but at least he makes the effort to speak to me. She makes no effort at all. Last time we saw her, she ignored me for 45 minutes in one go, and then another half an hour stint after asking one question (about DS's school).
Part of me thinks I should just drop DS off with her and go shopping. Or sit there with my kindle so at least I'm not bored (except my manners prevent me from doing this as.it.would.be.rude!). The unreasonable childish side of me thinks that if she can't make an effort to be polite, why should I bother ferrying DS to her (2 hours away)?
I'm rambling here - as I'm not sure what I'm asking. I don't want to deny their relationship and I know that DS is her only link to her dead son - but surely she must realise that by alienating me, I'll be less inclined to visit with DS? She is so self centered - not in a bad way - just that she doesn't think about other people unless it is to her benefit - that maybe she hasn't thought about that?
None of this is particularly urgent as we aren't seeing her anytime soon - I've just been thinking about it! I'd really appreciate if anyone could give a different point of view, as I'm all thought out!