Pie, I'm wishing you the best but terms like 'suicidal' and 'driving off a cliff' coming from a dude sound awfully dramatic. Be on guard of his intentions. Lack of intimacy makes men say stupid things. Trust me.
Find your comfort zone first and then see if his actions fit in it.
I don't know either of you, but comfort yourself in the fact that you're not alone here. Words are cheap. Actions offer the clues.
M / W: 43 D8 S6 M 10 years / T 13 years W admitted EA/PA: 10.6.09 Separated in same house 10.6.09 W moved out 2.27.10