<human>: My boyfriend and I have been together for over five years now, living together for over four. We have a pretty strong relationship and I would be happy to spend my life with him. Of course there are challenges and issues that arise, but no relationship is perfect.

As I have gotten older, I have started trying to have conversations about marriage. My boyfriend has known all along that marriage is something I want in a relationship. I don't bring it up often, or nag about it, or throw out ridiculous ultimatums.

My boyfriend is extremely indecisive, isn't a big "introspective" guy, and doesn't do a lot of future thinking/planning. The few times I have tried to discuss our future he often says "he doesn't know what the future holds". I'm of the mindset that you have to form your own destiny. A relationship/marriage is two people choosing to work towards a common goal. There is no guarantee it will work, only that both parties commit to working on it.

Recently, my boyfriend has said to me that he's unsure of our future together. He thinks there is something missing, but doesn't know what (or isn't saying what it is). He is also worried that since I'm already concerned about moving forward that I will be upset if we break up in the future and have "even less time" to get married/have a family, etc with someone else. In the same breath he says he loves me, and doesn't want to be without me. When I ask him straight up what he wants to do, he says he doesn't know.

I don't know how to proceed. Is this a normal concern for someone, or is this the ultimate warning sign? Should we try to work on things, or should I just try to move on?

Give me the gist of the text in a nutshell
<bot>: Boyfriend of 5 years is unsure if he wants to get married, but doesn't want to break up. Are these concerns normal? Or is this a sign I should move on?