Thank you for flagging this, I've changed how it works such that when your carer becomes immobile, she is now replaced by a new council carer. If your carer is your partner, she'll be cared for alongside you, otherwise she will be sent to Gentle Meadows. I've also added the progress bar to the next weight stage for carers.
That actually makes me kinda sad. There was dialogue specifically for an immobile carer talking about "the person they hired to help me help you" and other such lines of dialogue.
These lines only appeared when they became immobile, so now there's no way to see them because they're immediately sent to Gentle Meadows and get the dialogue lines for fattened up care home staff when you visit them.
Now there's no way to see those lines anymore. I think this is one of those things that could be fixed by my mobility scooter idea, as it would allow the carer to stick around and thus, allow those lines to be used again.