I wish you luck too Vicky. One piece of advice (that's already been said here, but I'll try to put an astrological spin on it), Taurus, you, Leo, her. What she needs is to feel that marriage is her idea. Pushing it will get you nowhere, but your Taurean sttubornness wants to push it, despite the fact that (from your posts) you know it won't work on her. I am so glad to hear that things are going well. I would suggest that when you do speak to her, if marriage comes up, just say something like "it's okay, we don't have to talk about this if you don't want to." Make it about her, keep telling her she's beautiful and you love her, but let her instigate the marriage talk.
One thing about Taureans (I'm married to one), the great thing about them is that the stubborn streak can be channeled into a very powerful patience. You are earth, she is fire. Only the patience of the earth can keep the fire going. Cause an avalanche though, end of story. It sounds like you two have a really good thing going, and if you just give her the time, I think she'll come around.