This is soo true, it just can't be said enough!
In the first months/years of the relationship with my loved girlfriend we fought a lot about my passion for soccer. She couldn't understand why I was so obsessed about not missing any games or to many team practices - You have to know that I am, at the most, playing semiprofessional and not living of soccer. She always thought that soccer was more important than her - until she finally realized that this was not a thing to compare.
Now she understands it and loves that I am so passionate about it. Sometimes she even is jealous, because she doesn't have a sport she loves that much.

It was really hard for me - many friends made me feel bad about spending so much time with soccer and not with her. And some friends quit their sport to hang out with their girlfriends. And I had many doubts. But I am glad that my passion for soccer won and that I am still playing. I still love it.

When I look back I see many friends who quit soccer for their girlfriends and then got left - now they, harshly said - nothing. Some relationships probably just died due to the fact that the dude was so submissive and lost his passion. And some maybe just broke due to the dude having to much spare time and getting annoying over time.

You can substitue soccer with any hobby/sport/passion and it would stay the same. So, like kaylin said, be aware of who you quit what for :) Don't do what feels the easy way to avoid conflict. Hope this didn't get to long :)

Awesome text, keep it up :)