I appreciate that people may not want to give up their seat to a 30 week pregnant woman (with badge so it's not a fat or pregnant thing). Yes even you mr captain America t-shirt stretched over the gym honed muscles manspreading himself all over. If it were the other way round I have and would offer my seat but there you go.
If you offered your seat I would probably say I am fine. Even though I am boiling and aching.
But am I being unreasonable to think barging past me to get to seats in front of me is taking the piss