Serial cheaters are possessive about their mobile phones. They maintain secret relationships and chat and call clandestinely. A look at this fraudster's mobile phone is likely to reveal their cheating behavior. Therefore, if you are dating a serial cheater, you most likely do not have access to their mobile phones. You will find them typing on their phones late at night or sneaking out to answer calls. Everyone values privacy, but if a person is secretive and becomes nervous every time you touch their phone, you are likely dating a cheater.

4. Reluctant about commitment

Whenever you start talking about commitment, does your partner put you off? Do they postpone an official announcement with constant excuses?