slap, hit, neglect, fib, twist the truth, equivocate, deny, abuse, break (a promise/trust), berate, refuse, flirt, blame, forget, lose it, get drunk, bruise, accuse, transgress, drink (too much), take drugs, ignore (needs/problems), lose touch, fail to (communicate/come home), pick (fights), instigate (arguments)

separate, collapse, divide, call off, annul, disintegrate, fizzle, fail, move out, lose interest, dissolve, estrange, divorce, split up, break up/off, walk away/out, go separate ways, burn itself out, part ways

fume, smolder, surface, fight, subside, fizzle, argue, resent, sacrifice, bicker, refuse, squabble, obligate, apologize, oblige, shake up, burn out, zing

count, weigh, cry, let down, beguile, lure, entice, tempt, obsess, consume, wait for, want, miss, mope, brood, torture, disappoint, electrify, exhilarate, preoccupy, hope, tantalize, titillate, pine, eat at, torment, promise, long for (things to change), shed tears, moon, long to (see one's lover), hold out (hope), break (promise)