SOML.

Leisure reading from Psychology Today:

"Dumped, But Not Down"
From the page:

• "[Rejection-sensitive individuals] live life in panic mode, which not only brings them relentless emotional turmoil, but also sets off the most frustrating feature of rejection-sensitivity: It becomes a self-fulfilling prophecy. Magnifying oversights and seeing slipups as proof of catastrophe, they unleash hostility, anger, despondency, or jealousy. Their emotional storms often drive away the very people they hoped to hook.

• "The difference between a normal response to rebuffs and an oversensitive one may be summed up in one word: rumination. Highly rejection-sensitive people are also more likely to be "overthinkers" who ruminate excessively about everyday experience. Overthinking may be the engine of hypersensitivity to rejection, says Susan Nolen-Hoeksema, professor of psychology at Yale and author of Eating, Drinking, Overthinking."

• "They might desperately seek out intimacy and make unreasonable demands of a partner—appearing overly invested yet anticipating the partner's departure. Or they avoid intimacy altogether—averting stormy relationships but losing out on the chance to find acceptance and support. Either path puts them at risk for loneliness and depression."

• "The best remedy for rejection-sensitivity is caring friends who can tolerate defensive antics and engender trust. Downey found that among rejection-sensitive people who did manage to find and keep a loving romantic partner, reactivity abated over time."

I honestly don't really have anything to add, except Story of My Life. 
 -T.