Using your MS analogy...what if the spouse of someone with MS said:
"Ever since my spouse has needed a wheelchair he/she has run over me 4 times with it, is often emotionally withdrawn and abusive and rather than offering part of their check for the household they blow all their money on frivalous things leaving me with all the household expenses"...few people would wonder why you chose to leave.
You said:
I'm only 27, but what if I never meet anyone else?
I'm over 50, gravity has
not been my friend, I have a mouthful of screws covered by odd temporary teeth, I wish I could drop a few pounds and my hair color is provided by Loreal. Men are still interested. Should you choose to leave, it should not be based on whether you will find "Peter Perfect" or be alone-it should be a decision of what's best for you to lead your best life. But I can assure you, if you want a man...you'll have the opportunity to ...uh...
test drive...hahaha...many.