<human>: Ok, I want to start by saying I love my girlfriend. We have shared so much and I can't imagine life without her. We have been dating for 3 years now but we had broken up for about a year in the past. We both have a very similar personality (hot headed) and our fights get.. well... ugly. 
Now for today. We went on an out of state adventure (not normal of us) and had a great time. We went sight seeing and had some great food. Towards the end of the night we went to a bar for some drinks and to watch our favorite teams play football. We left the bar and everything was great. On our way home we stopped at a gas station. There was only one person working. She wasn't very attractive and was working very hard. She gave me a discount on something while we were checking out and i told her I liked her boots to maybe cheer up her night. My girlfriend was right by me and I wasn't trying to hit on her. Well she got very upset about this and we got into a big blowup. 
The amazing day ended with talk of breaking up and misery. I do not want to lose her but this is starting to become a regular thing. What do you think about the situation? any input will help.

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<bot>: After a great day girlfriend and I got into a big fight about a meaningless comment. Don't know how to proceed.