Telltale signs she will cheat on me?

I'm sorry to hear you're going through that right now, but here are some things to look out for if you suspect that your partner is cheating on you. She may start spending less time you and feel a little more distant in your relationship, or she may be more secretive of her phone and who she's texting when you try asking her. The only way to know for sure is addressing the issue head on and letting her know that you noticed something change in your relationship and asking her what's causing it. A cheater may lie about doing anything wrong, but there's a chance that she may be able to help quell your fears and give a good reason for the way she's been acting.

My girlfriend was distant before she cheated on me. She didn't want to cuddle or kiss as much and the little touches we used to have throughout the day disappeared.

I noticed that my girlfriend stopped arguing with me. That may sound like a good thing but really it was because she didn't care enough to argue with me anymore. If we disagreed about something she'd just drop it and take the path of least resistance instead of putting effort into getting me to understand where she was coming from.

Yeah my girl kept hiding her phone and going to places. When I asked her about who she was hanging out with or what she was doing she would give me vague answers. I should've known she was going to cheat on me!

Distant, focused on her appearance, going out a lot, phone always facing down, not into intimate time, pushing u away when trying to touch her