I find them to be very similar concepts. When a girl is insecure in a relationship, she will crave more affection than normal. This will cause her to go to extreme lengths to be rewarded affection (non-sexual attention). When a girl is fed too much affection she can lose attraction, she is overwhelmed with too much non-sexual attention. She may start to pull back and shit test.
I notice that when one of my plates found out i was talking to other girls (we are not exclusive) she got jealous and needy and next time we met up she needed drastically more affection and cuddles/kisses. OF course she initiated everything not me.
On the other hand when you smother a girl and hang out too often, she wont initiate affection as often. Thoughts?