Quote Originally Posted by Pembroke_Corgi
I have a friend who can be like this at times. I don't let it get to me because I think it comes from low self-esteem. My friend IS very intelligent and accomplished, but she's always feeling the need to prove it to others because I don't think she believes it herself.

Maybe your co-worker is the same...maybe she is just acting this way until she feels people like her and she can be done "proving" herself. For your sake, I hope so! It does get to you after a while, but I'm guessing it isn't done to be arrogant, it probably just comes from feeling nervous or unworthy.

I believe this too. These are very needy people. I would just smile & ignore
it and not bother trying to one-up a one-upper.(if that makes any sense )