What do you think is the most suitable meaning of “sharp edges” when referring to a personality trait?

- He had had just about as much of Ruth and her sharp edges as he could take.

Question

What do you think is the most suitable meaning of “sharp edges” when referring to a personality trait?

- He had had just about as much of Ruth and her sharp edges as he could take.

Answer

It sounds like the idea is that she's emotionally volatile. Perhaps she becomes argumentative or combative with just the slightest provocation.

Answer

Aggressive, over sensitive manner...