Your sitting at work when your girlfriend gives you an unexpected call, she rarely calls you while at the gym. Perhaps your paranoia is acting up but your pretty sure your girlfriend is being unfaithfull

your on vacation with your partner when they ask too meet up in the suana later in the day. when you enter the warm steamy room, it is most obviously NOT your partner that you see inside.

you come outside of your house and see your sister lounging in a pool chair. its only been a few days since youve been home and she continues to tease you.