Broken heart syndrome? is this real? what is it?

Yes: Also called takotsubo's cardiomyopathy, it is a kind of acute weakness of the hearth muscle in which the apex of the heart tends to "balloon" thus making the heart resemble an octopus trap ( or tako -tsubo) although associated with significant stressors like death of a loved one, etc.. It can be seen in the absence of these. It causes heart failure but may spontaneously improve.