Advice!

I’m in grade 10 dating a grade 12. I know I might be thinking in to the future, who knows we might not even still be together by than (even tho I hope so). I’m worried about when he goes to college. I’ll be in grade 11 and I’m scared of being cheated on. Ik there’s a 2 year age difference but we ended up rlly liking each other. Idk if I should end things early to save myself more pain or if I should stay with him idk what to do. Any advice or can anyone relate to this?❤️