Guys being scared to settle down?

Opinions on guys saying there scared to settle down. 
Example: the guy I've been talking to told me the reason he got a little distant is because he got scared. He's the one that brings up the future with me the most. He will bring up marriage with me and babies. It hasn't been a full year yet since his last relationship which happened to be an engagement also. We slowed it down a bit. I'm trying to work with him because I really care about him and want this to work. He's been pretty depressed lately and told me he wants to get himself together for me so he doesn't bring me down and that he would be foolish to let me just walk away. How do I go about this? Help!