I'm not sure if it gripes or not, but it certainly not pleasant. So here we go:
A coworker feels offended by me and now she doesn't want to talk to me. The matter is just because stupid chats.
Her task is to check up our designs. Recently, she asked me about some confirmance, and I reminded her about the reference and notes that I gave her earlier. Suddenly, she feels offended and said that my words make her feel stupid (wtf?) and went into emotional outburst. I am able to remain calm this time, so I tried to calm her down. Now she doesn't even want to read my chat.

Admittedly, since I met her, I know that she is a type of person who is too sensitive and unable to accept critics well. Blah! Type of coworkers that hard to deal with. I guess I should contact the HR after work hour.