When people are feeling lonely, when there is a lull in their relationship, some will go back to the ones they've dumped or cheated on to find some solace. They don't really want to get back together as they have made no effort to signal that reconciliation is a desire. Yes, ego, yes, loneliness and yes, sometimes, finding some satisfaction that you, too, are in some pain in regards to relationships. The holidays, especially, can bring up such feelings.
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