Theres this gurl, she acts like she likes me at times and others she dont...WAT SHULD I DO?

4 starters im rocket (prolly neva heard of me if u don't live in new orleans) and im ya typical social person whos pretty generous but i met this gurl in art cl at high school..the thing is dat she likes me but she kinda trippin ova our age difference (im 14 she 17) so she not ready to really make ha decision yet bout us goin out and i kno 2 give ha sum time. ma frind dj traine introduced us but she seems nice but he says shes a total jerk to him and da rest of ma frinds. im really feelin ha and she really feelin me bak but da whole age difference thing and ha bein a jerk is really holdin US back. i jus gotta kno shuld i b patient n see wat happens or give it all up while im ahead??!!