Whether it is physically or emotionally, being cheated on is one of the toughest things you can go through in a relationship. Here are four signs that your partner might be cheating on you. Being overprotective of their phone. People have plenty of innocent reasons to be protective over their phones, such as work restrictions or personal information. But if you used to have free access to your partner's phone and that suddenly changes, it may be a sign of infidelity. Changing passwords. Unless your partner has been hacked or was part of a data leak, changing their personal passwords can be a major red flag. Many couples know each other's phone passwords in case of emergency, so changing it can be very suspicious. Changing personal grooming. Personal grooming by itself is pretty harmless, they may just want to look better or even feel better about themselves. However, if they've never cared about it before, suddenly grooming body hair, particularly in intimate areas, could be a sign of something more. Making grand gestures. Big gifts or other grand gestures of love that come out of the blue can sometimes feel like you are being bribed. While you should not be suspicious of every gift, keep in mind that it could be coming from a place of guilt instead of love.