What are the signs if my girlfriend is cheating on me?

[Sacred_Love]

When there is something wrong in my relationship, say cheating gf, how will I know?

[sweetypielovely]

A lot of people who cheat start by acting in ways they normally dont. Maybe they go out more often alone, stay on the phone more, and go out during hours they normally dont. They may seem more distant, buy new clothes, and try to improve themselves, you stop having sex, and they become defensive and paranoid.