When I first got married, I used Ms [my last name]. I was a full-time teacher at the time. The kids (and some of the staff) kept getting mixed up and calling me Mrs [my last name]. I found that some of the kids thought that 'Ms' meant that I was a divorcee.
Eventually, I switched to Mrs [husband's last name]. Some of the kids thought I'd got divorced and called me Ms. That didn't last too long.
None of the above bothered me.
3 years ago, my husband died. A young chap came to my door and persuaded me to accept a rendering quote. (The work does need done.) He asked if I was the house owner. Yes.
Then he asked if I was married. Through gritted teeth, I told him that I was the owner. Again, he wanted to know if I had a husband, because husbands sometimes objected...
I bit my tongue. Told him I was a widow. "Oh, it'll be 'Ms' then?"
That's one time that I've been really angry about someone getting the title wrong.
However, I now do a bit of supply teaching and I do find myself getting a bit irritated any time a young depute calls me "Miss." It's not logical, but it feels as though my relationship with my husband is being erased. (That might not be unconnected with the fact that my husband's adulterous ex treated me a bit like a junior wife after he died and had some folk convinced that she was "devastated". It's a long story...)