Books where romantic/amorous love is described as greedy, unhealthy and unhinged?

What the character feels for other is love, but it's neither healthy nor sane.

It's a lot like gluttony. They feel they can't rest easy until they have claimed the other, made their space in their body, mind and soul, till they reek of them. They want all the other have to offer.

This is love, but tinged with greed. It is greed.

Rec me fictional books that depicts love like that