Boyfriend troubles

My boyfriend and I have been having issues for... about a month... to two months... so yesterday at work (info because it's easier to explain this way, I work at UPS in one park of a warehouse. Boyfriend works in another area on the other side of the building.) one of the UPS drivers came in and approached me.. asking me to dinner... flirting... a lot. More context: he's the hottest male driver at my building. So I turned him down as I am a taken woman and I will not cheat if my life depended on it. But after an argument last night... I dreamt about the driver. and I want to scream because it was a sex dream. 😫 And it was a good one 😭 and my boyfriend and I have been arguing all day.