I've been single for 2 weeks

My partner of 2 and a half years left me about two weeks ago. He said that "he couldn't handle his problems and mine" and that he didn't have "the capacity for a relationship right now". I'm not heartbroken anymore I'm still hurt and I'm not obsessing over him anymore. I'm still hopeful. His life is a wreck right now, and he is dealing with a lot. But no matter the details, in your opinion is having a lot of stress on your plate cause for a breakup? Because on my side of the fence I don't run. I would rather stay together because my partner makes me stronger. I'm just looking for opinions.