I’m kinda jealous about my boyfriend and my bother’s new friendship

I mean yeah, it’s cool they get along but I’m starting to feel like the third wheel 😭 this has happened before. That’s why I don’t like when dudes I date get close to the family, because I can never keep up with them. They find something they’re interested in and it’s never something I’m good at. Like today, when we went jogging on that trail. I couldn’t keep up with them in the beginning so I just told them to go on without me and it was ok. I’ll catch up. But it upset me that he would rather hangout with my brother than me today. We just don’t have anything we’re into together. He likes being outdoors in nature, I don’t. I mean, I like going on walks but not sh!t that’s gonna take 3 hours to complete in this heat 😭😭😭