The hardest thing to get your head arond is that the rejection isn't personal. Sounds weird, but they are'nt doing it to you, it is all about them and they are (so I understand) acting out what you represent.
Everyone will tell you that the OW doesn't begin to compare with you - as Snodderly says, they affair down, but it all feels like a slap in the face.
OK they mean to hurt, but it is coming from their damaged self, not the person who we loved and cherished. Dr Jekyll loved us, Mr Hyde doesn't love anybody, and indeed the people he can stand to be around aren't usually very pleasant people.
I have been continuing to blitz my garden, and it is looking less like an abandoned lot and more like somewhere you might want to spend time!! Have built a compost bin out of old pallets, and wrapped it round with split cane fencing, and feel like an earth mother as a result.
Take care, and protect your inner core by remembering it is all about him.