I agree with what the others are saying. He probably wants to initiate, but is scared to death of rejection to even try anything. When he thinks about initiating with you, his mind backtracks to the umpteenzillion times that you pushed him away. For me, initiating sex now with my LD hubby is almost a physical reaction, a nausea that sets in, at the very thought of making that fateful move on him.
You are doing the right thing by initiating, and just keep that up as the others have said. Don't try to push him to initiate. After a little while longer, if things are going well, you could maybe lovingly tell him something like, "It would make me feel very desirable if you were to initiate sex with me sometime." Maybe you could also set up a signal with him, like, "If I am wearing my red lace teddy that means I want you to initiate sex with me."