So i'm starting to get concerned with my girl. We've only been together for about 3 months now. Theres this guy I work with, lets call him Bob. A while back she noticed Bob at my job. She described Bob to me one day and asked if I work with Bob and what not which is obvious we work at the same place. This is when I first started to take notice of this whole thing.

Not too long later in time, she see's a picture of Bob as she was scrolling down on my facebook timeline, she asks me "Do you know this guy?" OBVIOUSLY I know the guy, he isn't a friend on facebook for no reason, and she even asked me about him before. I give her a calm nonreactive answer of course. She also happened to zoom in to his face on the phone after staring at the picture for a few seconds, then continues on scrolling down the facebook TL.

Further in time, I was telling my girlfriend a story about another one of my coworkers, I starting to describe my coworker as being a white guy with really blue eyes, my girlfriend goes " Oh are you talking about Bob?" Bob is a black guy with dark brown eyes by the way. Yeah.

Then yesterday, I was eating dinner at a bar with my girlfriend and a few friends. All of a sudden Bob shows up with some friends of his, we all talk for a little. As we're talking I see my girlfriend staring at Bob on and off, she doesn't say too much. Bob later give his farewell to the group, my girlfriend then turns her head all the way around in the direction Bob is, almost to see if he was still in sight for her to glance at.

I don't react in any type of way to any this, I just keep cool and act like everything normal, but I pay very close attention to her. My girlfriend hasn't done anything to harm our relationship, she's a good girlfriend so far but from a past relationship I have seen this before and obviously that past didn't work out. This might sound like nothing to you guys but idk, i'd just like some insight or some thoughts from other people. Should I say something? Should I bring things up to her when I notice them? I don't wanna seem jealous. Idk just give me your thoughts and past experiences.