Decoding Guy Speak...?

It might mean that he thinks of you as more than just a friend with benefits, he probably still cares for you, at least as a good friend.He doesn't want you to think that he only wants you to fool around with, but he does like the fooling around, and by calling it a "weekend thing" it seems like he just assumes it's going to happen. But he doesn't want YOU to be just a "weekend thing." He wants you to be his friend even when there isn't any fooling around.