<human>: Summarize the given text in a few sentences.

Currently in a 6+ yr relationship (my only long-term relationship). We're both in our early twenties. As of late, I've been starting to feel less enthusiastic about the relationship. I certainly love her, but I'm not confident that I'm *in love* with her anymore. It feels like we've grown in slightly different directions - our interests are different now, and we have less things we enjoy doing together. I'm a bit bored (intellectually and physically) with the relationship. 

This being my only long-term relationship thus far, how can I tell if what I'm feeling is a natural side-effect of being in a relationship for so long, or if it is a genuine issue I should address (and contemplate breaking up). 

I don't want to end things with her, only to find out that this is what every LTR feels like. I do love her - immensely - but I can't figure out if I've fallen out of love with her, or if I'm just feeling standard effects of longevity.

Any advice? Thanks!
<bot>: 6+ year relationship and I'm feeling a bit bored (intellectually and physically). How do I figure out if I've fallen out of love, or if this is a standard feeling of long-term relationships.