Personal boundaries.

Everything is very simple: if communication is pleasant, doesn’t cause discomfort, then personal boundaries are very low-key. But when you feel: "STOP. I don't like it." — that's where your personal boundaries begin. Of course, everyone has their own understanding of them. If you draw an analogy with your own household, somebody always has an emotionally «tall bulletproof fence», while others don’t have a fence at all, their door is wide open — everybody is welcome. The absence of personal boundaries comes from childhood, if the parents violated their child all the time, making it clear that it is something normal. When the boundaries are too strict (the adult behaves too aggressively and perceives any behavior as a violation of boundaries - this also intertwines with PTSD, however, protection here worked, unlike the first scenario. In the first scenario, fear prevails over anger. In the second, anger over fear. As you understand, both need to be balanced.