There Is this boy....That sums it up...please help?

Well there are a few things going on here. First off, you are both in 7th grade and I am sure he is just as nervous as you! If you two are as intimate as you say, he probably is just as interested in you as you are in him. However, there is no need to rush the relationship! That will happen over time! You both are still figuring out what you look for in a person. Also keep in mind that when he is a jerk around his friends and then nice later, that's NOT him training you to be better, that's him telling his friends that you don't mean as much to him as he does to you! He is playing the "cool" card, so don't put up with it! Also, you should stop letting him grab you. For one it's not really appropriate, and for two, if you make him stop, he will only try harder for your attention... which will only help you in the future! Hope this helps and good luck!