<human>: Can you provide a brief rundown of the text in within 3 sentences?

I know people don't want to read walls of text, so I'll keep this short.

I just messed up my first relationship. She said her feelings changed. I know that it's because we were moving too fast and it was **our** decision to move that fast. It was my fault though, because I wasn't aware of something called "honeymoon stage/phase/period". If I had known about it, I would've kept things going slowly.

I don't want to make the same mistake again. Is there anyway I can improve? Are there books out there which could help prevent that kind of mistake? Maybe some forums? **I don't wanna learn from my own mistakes**. It's too painful.
<bot>: Messed up first relationship which could be a beautiful one due to inexperience and unawareness of the "honeymoon phase". Wanna learn more to be better at dating/relationship to prevent further mistakes. Thanks!