The INTJ guy I'm seeing has had some kind of switch thrown or something. I'm seeing a whole other side to him in recent weeks. He has started straight up teasing me like crazy, particularly about my height (I'm only 5'3") and a couple of my quirks. I suppose he's more comfortable knowing that I'm not easily offended and will laugh right along with him or give him something snarky or sarcastic right back. Is this a typical type of behavior as you progress farther into a relationship?