I doubt a lack of remorse is a bipolar symptom. I have a few people in my life that never apologize, 2 of whom don't feel any remorse after wronging people they love.
I personally think its more a personality thing as many of us feel remorse and can summon up the courage to apologize later.

What's the most embarrassing for me? Definitly random crying in public places like on the bus, the delusions (thank goodness they're rare), and treating loved ones like shyt when I have no mouth guard.