<human>: My girlfriend and I have been together since we were 19 and are incredibly in love. Constant talk of marriage, kids etc. I don't see myself settling down with anyone but her for the rest of my life.

HOWEVER, a very small part of me thinks that I'm perhaps missing out on having other experineces in life such as meeting other people, going through that 'honeymoon' phase of a new relationship, exploring each other and what not. 

These feelings have really been prompted from a recent night out. A few friends and I went to a lounge bar after dinner to grab a few drinks before walking home. Apparently it was ladies night and there was a decent amount of girls there but paid them no attention. This was until I started to get hit on by a couple of girls at different intervals during the night. It felt good to experience this as I rarely go out and am more content just spending time at home with the GF.

I found myself somewhat attracted to some of these girls and had to remove myself from the situation as I didn't feel comfortable being there anymore. I've never cheated and never will, but there was this nagging little feeling I was having when this was happening that indicated I'll never get to experience the "getting to know you" stage of a new relationship / encounter ever again. It's not even about the sex that's making me feel this way, which may seem weird to others but I'm not interested in just sleeping with other people and having an open relationship.

A small part of me feels like I'm missing out on life experiences, whereas the larger part is incredibly happy. I'm just a little confused and would really love some advice some people who have felt the same way.

Can you provide a brief overview of the text?
<bot>: Been in a 7 year relationship, got hit on, feel like I may be missing out on life experiences by never going through the "honeymoon" stage of a new relationship. What should I do?