Yes it is totally exhausting because these types push, push, push at boundaries. They will erode and deplete you and come to dominate and colour your marriage, motherhood and family life.
You need to decide as a DIL, a wife, a couple, a family how much of your finite headspace, time, emotional energy family events/memories are going to be negatively drained, consumed and coloured by these people.
An alternative is to fill your children’s lives with your radiant family and friends who will behave and model kindness and respectful behaviours, so that you have a calm and peaceful life with joy and happiness. This will also allow you to be better more present parents for your DCs because you are not preoccupied or dealing with this week’s antics from the bitter, controlling parents.
”My DH is aware of how they’ve been and is harbouring a lot of anger towards them right now. When he’s with them he feels very tense and they imply that this is because of my presence and control of him, rather than their behaviour. He also is still hopeful and he can come off a phone call with them which was positive and act like it’s a normal relationship and they’re so great. He’s basically confused right now about where this is headed and that’s hard to see or help.”
The first half of this statement are his true adult, appropriate reactions and feelings to difficult people. Anger and tension are important energies to pay attention to - it’s his body screaming at him. This is the real, here and now stuff. Ask him
what actions does he normally take with difficult people and difficult situations that trigger anger and tension.
The second paragraph is the conflicted part and is where the unhealthy drivers of FOG (fear, obligation, guilty) take over and the confusion sets in.
“Hope” with dysfunctional parents is a totally appropriate survival driver when we are a child - we needed the adult to shelter, feed and clothe us - so we tolerated bad behaviour and “hope” drove us to keep engaging with difficult people and situations just to get fed etc even though subconsciously or even consciously we knew they didn’t make us happy and we were hurt emotionally.
As adults we still go back in the hope that they will change, they will be better, they will be different. But they aren’t and we don’t need them for food, shelter etc. So it’s a remnant driver that is irrelevant in adulthood and keeps us stuck in unhealthy dynamics and behaviours.