No but

Bitters getting a murderous look on his face each time somebody hits on Jensen - because he knows it makes her blush and fumble with her words and most of the time the guys only do that to embarrass her

Bitters letting Palomo rant about Tucker and how hard it is not to be seen as a good soldier - Bitters looks like he doesn’t care, but he stiffens each time he hears Tucker calls Palomo an idiot

Bitters going through family pictures with Smith because the guy misses his family so much he has to tell somebody about them - he got married just before the beginning of the civil war and his wife was pregnant

Bitters acting like he doesn’t give a shit about anything but actually being the one who cares about everybody