Practically, even when you do get over them, you still do remember them from time to time at certain instances, but it’s just that it doesn’t hurt anymore or you’re used to the Jason Voorhees free hugs just kidding don’t touch me Corona virus shirt In addition,I will do this hurt. It’s called head bunting, a form of affection. Cats have glands all over their bodies and use these parts of their bodies to mark their territory. You just get used to it, your mind adjusts to the changes over a period of time, your chain of thoughts learn to not stop at that station day after day until that station becomes invisible. Some of this territory is their human. They mark their humans as a way of claiming them as their possession, thus head bunting. They will also rub themselves on your leg, push their heads into your hand, kiss you, slow blink.