How long is enough waiting?

Me and my GF have been official for 3 months and 3 months ago i was crazy for her i know she still oves me shes 16 and im 17 and a senior and ill be graduating soon and my summer has already been planned before she was in the picture and im gonna busy with other people and other things i still like her but not as much as i used to and i never really reached the in love part of the relationship like she did but i hoped i would and i dont want to hurt her but i dont want to keep waiting to fall i nlove with her back and wit the summer coming up i might end up hurting her so is it time to call it quits??? i still like her and evrything but shes a sopre and i know shell find someone else but shes in love wih me and i dont want tit o hurt