Teen Relationships

I’ve been dating this guy for a little over a year who is now in college but goes to school right near me. I’m in high school. I love him so much and have done so much with him and have so many memories. We have been fighting recently about many random unecessary things but I still love him. Just found out his friend (who he isn’t friends with anymore for different reasons) is interested in me and I would possibly be too. His friend is also in college about 2 hours away. I’m not sure if I’d want to be in a relationship with him but I feel like I want to get with him and see what it’s like. I have this gut feeling to take a break with the guy I’m with for these few reasons but I also don’t want to ruin what we have, but I keep having this feeling. I hate this because I’m indecisive and don’t want to mess anything up with anyone. I’m not sure what I want or what to do please give me some advice.