No no, Its only 2 years its not like 10 or 40. You will be ok now if you don't feel the relationship wont work for some other reason then break up with him then.
Like me I broke up with a guy because he said I love you ( and way to much I may add ). My friend made me go out with him ( she wanted me to for a week ) but I couldn't It only lasted 3 days. It sound so bad and I feel so bad but it is 8th grade and you don't say love you in 3 days especially if you barley no them but no your fine. keep dating the dude. :)
You're way too young to be going with anyone. I mean you can't even go on a date by yourselves. If I were your mother, I wouldn't allow you to "go" with anyone older than you. Also his hormones are raging. If you stay with him, he'll eventually expect sex. You're way too young and impressionable for that.