My dsis lives with my parents. She has OCD. It's mainly around cleanliness issues / contamination etc. She is constantly washing her hands etc and will wash perfectly clean clothes that she hasn't even worn etc.
Our DM has gradually become an almost servant to her and panders to her every need around the OCD. She does all the housework, all the laundry, cooking and cleaning in the house. She'll tell us ( the other siblings) not to come with our young kids at certain times as it might trigger her (with little ones being a bit messy / dirty etc). Dsis leaves her plate at the table and doesn't even put it in the dishwasher as DM does it. Dm does certain things only when dsis isn't around or will wait till she's left the room before she does something. She'll not let anyone use the bathroom at certain times of the day as dsis will be using it eg after she comes home from work etc
Her whole life revolves around dsis' OCD, trying to not upset her or do things where she'll end up washing her hands etc.
I understand why DM does all this as when dsis isn't "triggered" life is so much more easier. The alternative is dsis going into a rage and forcing DM and others too to rewash our hands / things/ wipe things again etc and she won't settle till you've done it. It's really hard living with her but DM has found a way which works well for both of them.
The the thing I want to know is that, is this what it's like to live with someone who has OCD. Controlling, almost even - I hate to say this but abusive.
An additional sad thing is that it's affected dm's relationship with the rest of the siblings as she has prioritised dsis over all of us. I understand that she needs more support than the rest of us but during times when we needed a bit of support from our close loved ones DM has said she can't help because of dsis. This has never been an issue tbh until recently.
My other dsis2 was literally homeless and penniless when fleeing her dp with her children. She left another country and had nothing. Her kids lives were turned into chaos and she asked DM if she could stay with DM for a few months (dm house is a large) whilst she set up a new life here. Dm said she couldn't accomodate her due to dsis at home and that she should find alternative provision.
She ended staying with us in a small 2 bed house for a few months. There were 9 of us. Dm has 3 large double bedrooms empty.
I don't know if I'm being unreasonable and nasty and not being understanding or if this is how it is.
I hate OCD. It's a bastard of an illness and wouldn't wish it upon anyone.