I am really confused about this guy I like.?

he completely likes you if he kept trying to grab your hand at the mall thats a good sign. he may be sending you mixed signals because he knows you like another guy and he is jealous. the next time you hang out (its better face to face) tell him how you really feel. if he feels the same way he will say it and if he doesnt then he wont. life is all about taking risks. this will probably work out really well for you. so go talk to him.