I completely disagree... we are not a monolith, all the same. Men of passion and empathy many times react and show great emotion. I have dated women who were as cold as ice and didn't show enough emotion or empathy for me.
It is entirely possible that Vontae Davis was experiencing issues with CTE and suffering in silence and he needed a TERRIBLE way out. I myself at 50 sometimes think about what I have to be prepared for in case of a gradual debilitating disease, for I do not intend to rot away in hospice of dementia.