the more you think about it, the more you realise there is a huge issue with continuity in mike and will's relationship going from s2 to s3 + s4. it genuinely doesn't make sense for mike to be so dismissive and even actively cruel towards will after literally holding his unconscious body up while watching a demodog slaughter. mike experienced constant fear that his best friend was literally dead or going to die in s1 and s2, and yet he turns around in the following seasons and belittles will's desire to play D&D, ignores him in favour of el, makes a homophobic comment towards him which he never directly apologises to will for, makes little effort to communicate with him when he moves to california, etc. sure, maybe pushing will away is mike's way of coping with the trauma of seeing will hurt so many times... but why the writers never address this? why do we just get the illogical jump from 'mike would do anything for will, including never letting go of his limp body even as he watches violent demodogs tear bob apart' to 'mike will completely demean and ignore will and choose his girlfriend over him even when he knows what will has been through'?
not to mention that the trauma montage in s5 only has mike losing el, not the scene above, not mike watching what he thought was will's body get dragged out of the lake, not will screaming in the hospital bed while possessed, none of it.