Cheatah
The spelling is correct, Cheatah. These people usually roam in packs, to make themselves feel good and be influenced by the others in the pack. They can be of, any race, age or sex. They're supposed to be your partner, but they still constantly, and I mean CONSTANTLY, like it's their job constantly, running around, behind your back, cheating, and doing scandalous things with whomever, but you are accused of being unfaithful so much that you never leave the house, giving the cheatahs the freedom knowing you're at home, alone. You can even hear all about your partners activities around town, but they will continue to lie to your face until you forfeit the argument from pure exhaustion. These are the type of people that you can actually catch them in the act of cheating but still lie to you.
A partner finally comes home at 10am Friday morning, stating they stayed at their mother's house all week, but their mother had already called this morning stating she misses them and hasn't seen them in almost a month. Then the partner says they said Dad's, not Mom's but he already called too stating he saw, her in bed at her sister's house yesterday with someone that he thought it was you. That partner is a full time Cheatah.