No, she took the only full time job she could find in a very rural area with no public transport. She didn’t exactly have much choice in the matter. Most couples would be happy to help eachother out with transport, especially if one had a disability. Decisions that upset the balance need to be made jointly. One person can decide that the other person is no longer able to work (not that I completely agree that OP has no alternatives- several have been outlined up-thread).
I do agree that it sounds like OP didn't have much choice when it came to taking this job as she said it was due to store closure and possible redundancy.
BUT her ability to accept this job depended on her partner's job naturally allowing for him to give her a lift at that time. That's not the same thing as him having to turn down promotions in his own job in order to be able to give her a lift.
I think it is hugely unfair to expect the DP to turn down more money and a better job purely to continue giving OP a lift, just because that has been possible for the last few months. It's not something that was agreed would always be the case, it's something that happened during lockdown due to necessity and convenience and now it's just not workable anymore.
I currently drop my DP at the tube station when he goes into the office as it's a better and cheaper journey for him than going from our mainline station. However, if I was offered a job where I had a long commute so would no longer be able to do that, I wouldn't even consider that I couldn't accept due to having to drop my DP off. It's on him to manage how he gets to and from his own job, and if it's not workable then he would need to change his job, not me.
I understand there are extra complexities here due to OP's disability - potentially this means it would be difficult for her to use public transport or perhaps it is something that just purely affects her ability to hold a driving license. But while I do completely sympathise I think it's unfair and unrealistic to expect someone not to accept a promotion based on having to give their partner a lift to work.