Is it just me or is the immortal…. A dumb asshole. You’ve got this kid that has the potential to overtake you someday. You can see this kid is going through a period of extreme emotional upheaval. A kid desperate for a good father figure. And what does the immortals thousands of years on earth tell him to do?
Be a dick to mark and make sure he knows you don’t trust him. Like wtf immortal maybe you could’ve offered to train with him or given him some pointers or literally any other path than the one you chose.
Immortal is honestly an idiot and it’s clear his ego dictates his decision making. Not a fan.
The immortal is a very flawed individual, but i don’t think its an ego or IQ, hes been shaped over 100’s years dying and being reborn in the USA for most of his heroics, It is this history that has shaped him, you don’t think he is jaded or bruised up a bit.
Omni man killed him twice and nearly a third time if you count a certain story arc. So yeah its understandable he doesn’t like mark.