<human>: So me and my girlfriend were having a nice day at her place watching the last Starwars movie, she had never seen them. Well while she was setting up her laptop I lost my phone somewhere in her mattress, so I used hers to call myself to find it. Out of habit I guess I put her phone in my pocket.

Skipping ahead, I got home and texted her that I got home fine , only to hear her phone chirp from my pocket. No biggie, I called her mom so I could let her know I took my girlfriends phone by accident.

Then she gets a text from an old co-worker. It was an innocent response to her asking him how the weather was. But I never liked the guy, he always talks about how hes the type to never settle down. How much of a player he is and that his type of girl is one with a big ass, which my girlfriend has.

What bothered me was, the rest of the messages were deleted. I know deleting messages isn't a habit hers. They no longer work together. She texted him first.

I immediately confronted her about it. She says they're just friends and she was worried about how I would respond if I found out. She wants to talk face to face so shes coming over tomorrow.

Summarize the given text in a few sentences.
<bot>: My girlfriend deleted texts between her and another guy. I'm hurt and now it's stuck in the back of my mind. I feel like I can't trust her, what do I do?