TLDR: LTR GF maybe having something with his colleague? A few changes in attitude shows that something is going on.

So I have an LTR with a girl and in the last few weeks I saw some change in her attitude. She works as a receptionist and she works in the same shift with the same guy nearly every day.

She started to mention him more often compared before and comepared to anybody else from work.

I visited her at her work because we planned a lunch together and i stayed there a little bit after - I could see the chemistry I don’t have to tell more.

They got the task from their boss to visit an evening boat cruise (it’s an hour or two) just the two of them- it’s related to the work I know that’s not the problem. I am not gonna be at home because of work on those days so she can do whatever she wants. I guess the normal reaction would be she supposed to say that she is not going with him but she didn’t rejected at all.

Another thing that happened today that we had an afternoon program and we were sitting next to a river I was talking about something and she saw some funny thing related to their inside joke - so she took her phone made a photo and sent him without listening to me or waiting until I stop.

The question is: did she already cheated or just going to do it sooner or later?