And again you are comparing his old self to his new self, something I didn’t do in my analysis. Yes he fully loved Milah. Or did as far as we knew. But you know what he DIDNT have when he loved Milah? A DARK CURSE ON HIM MAKING HIM CORRUPT WITH DARK MAGIC! So no he couldn’t give Belle True Love fine but that doesn’t mean he was USING her.
He proposed to her WITH the dagger. He used the fake one to kill Zelena, but then gave her the real one because he wanted to do right by her. He DID love her fully. He DID want to love her fully. He was READY TO. But then the damn hat came into play and then that fiasco started.
If you don’t see how much Rumple loved Belle I seriously don’t think we’re watching the same show.
Also, while he loved Milah, Milah didn’t love him. He saw him as a coward because he was one. Belle can see what he is but in a different way. A scared, lonely man who is trying to fill the void left from his actions which caused him to be alone.