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

Thanks in advance for any advice you can give. Here goes,

We have been together for just over 3 years, have had our ups and downs, though the past 5 months or so have been a pretty long "down." We have had a lot of struggles and back and forths over our differences in beliefs and how those differences affect our relationship. That's a whole other story though....

What I am posting here to ask about is if any other redditors here have been in a situation where they felt dramatically diminished attraction to their partner/SO and a reduced desire to really spend time with them (i.e., when given the opportunity to spend the night alone or with her, I would probably choose alone, though often will ignore that gut-reaction and spend time with her anyway because I know she would spend every night with me if she had the choice). So I am asking if anyone has ever had these kinds of issues and has overcome them, or if these really are huge red flags. This is my first long term relationship and I DO know that yes, of course there are ups and downs and your partner isn't going to be as attractive to you every day as they were when you first fell for them... but... is this what the future is for most LTRs? Is there a way to bring that piece back where you really DO desire to spend a lot of time with them and push that attraction back up?

Just feeling really...diminished and defeated. Thanks for any advice or experiences you can offer.
<bot>: Diminished attraction to 3 year SO, reduced desire to spend time together; are these repairable issues, or just glaring red flags of impending doom?