Sooyoung sweetie, you're better than this

That happens especially if u knew the other person is not someone who easily smile

yes!!

Not an excuse, as I said, therapy. This is a complete over reaction, he left the building without saying a word and took a taxi not even knowing where to go. It would be normal to get a little jealous at the time but do you really think this reaction is okay?? "Storm in a tea cup" I would say. Both needs therapy hahahahah