Not enough alone time

This is my first post, sorry if it isn't very good.

My girlfriend is the primary co-host of a system. I am recently out of work, therefore homebound for the most part till I can start my new job.
The issue of having enough alone time for Others to have their 'out time' as we put it, has come up since I'm stuck at home much of the time.
I've to give them enough time, but I don't really have anywhere to go.
That means I end up walking around the mall or sitting at Chipotle for something like 5-6 hours two or three times a week.
No matter how you put it, it sucks.
But I love her and the System and want what's best, so They need to get Their time.
Recently I have been very depressed, and with some med changes, my own dissociation has been , much worse as I have PTSD and dissociative depersonalisation disorder. So it been unstable lately.
She has many littles in the System that i'm normally very close to. Understandably they are not very comfortable having 'out time' with me around right now due to the instability.
We have been arguing a lot and have been short tempered recently.
Our relationship has been very positive and stable until just before the job loss as my symptoms have worsened.
I have built very good relationships with most of the Littles, but now the aren't comfortable coming out around me because of the stress.
The other co-host and primary protector has become my closest friend.
I can talk to him about almost anything and give me great advice, but due the secrecy of having DID I have no one to talk to or to give any kind of support.
As hard as things have been for me recently, I still give all the support and attention I can give. This is often in the form of massage and sensory management, as I am well educated in.
But due to her triggers, which I never hold against her, I am not able to receive any form of physical comfort. Even just rubbing my back is triggering. Because of this, I have felt very distant from her, and somewhat uncared for. Even taken for granted.
And MORE so, between the triggers and Their severe sensory defensiveness, EVERYTHING I do bothers her. For example, shaking my leg on the other side of the couch, she gets up and sit somewhere else, or even sleeps on the floor if I do in bed (this a habit I do often as a response to pelvic pain from a permanent injury).

This frikin sucks, and don't know what to do anymore. I am trying very hard to get back in control of my own health, and at the same time I feel expected to do so much to take care of her and the System.
I seem to have become the 'Bad Guy' in all this, and it doesn't feel fair.

First and foremost you have to take care of yourself. If you aren't right then you can't do either of you any good.

This next part is not going to be accepted well by many. Are you happy in the relationship? Why are you staying? Is your love for her enough? If she were healthy would you still be with her or does the illness make you feel obligated?

You need to answer those questions as honestly as you can. Sometimes love is not enough.