How long is too long?

Stacey
How long is too long to be engaged? I've been engaged for over 3 years and I'm starting to feel like I'll never get married. We had set a date for 2 years after we got engaged and it didn't happen due to my so being in an accident. Now when i try to talk to him about getting married he says he doesn't want to talk about it or he wants to finish renovating the house or its just a piece of paper. What do I do?