Yes, she was “eccentric” from the time of their courtship and was NOT Lincoln’s first or true love
Have read that when their son died in the White House, Lincoln had to threaten to have her committed to St Elizabeth’s if she did not pull herself together
She also lost her brother to the Civil War, and supposedly suffered from hate mail from people cursing her and blaming her for the war dead
I’ve read the same things you document here as well.