1) Lennie is dependent on george for many reasons. One of the reasons is that george watches out for him. Another reason is that Lennie is really forgetful and george reminds him of stuff. In my opinion george is like Lennie's mom.
2) He may not feel like he likes lennie but he has some sort of feelings for him. he probably feels like a brother to him in a way. Maybe he has sub conscious feelings towards lennie. In conclusion i think george loves lennie as family.