definitions

ruminate, v.t. to chew the cud; to chew again what has been slightly chewed and swallowed; to muse; to meditate; to think again and again; to ponder

obsess, v. to preoccupy the mind excessively. To have the mind excessively preoccupied with a single emotion or topic

betray, v. to hurt (someone who trusts you, such as a friend or relative) by not giving help or by doing something morally wrong

Oh to be able to quit obsessively ruminating about the betrayal