<human>: So I posted about this on AskReddit and my GF found it. I told her I wanted to talk to her about it later, but that was a lie. I don't know how to talk to her about this stuff. She only thinks about me, and I'm not a good enough person to handle it. Yesterday, we just talked on Messenger about our marriage procedures and how we'll both live in the US. And after work I had a beer or two with my coworkers and talked to one girl about music. She's funny and different from my partner, I'm a bit interested in her but obviously I'm not going to do anything. But I flirt with her without even thinking about it! It's nearly impossible not to flirt with her. And she knows I'm taken. I sometimes think about what could happen with her if I weren't taken, but try to quash those thoughts, and toss them from my mind. 

My questions: how can I address the idea of having a crush with my partner? Or is it just not worth it if it'll upset her 100% of the time, like it currently is? 

How can I "crush" the idea of a "crush"? I don't want this. It makes everything more complicated.

Can you summarize the given text in a few sentences?
<bot>: gonna marry and start a life with this girl in my home country, I have a crush on a coworker and don't know what to do and don't know how to talk to my GF about it.