WTF RIOT

how does my approximate wait to login go from 1h 45m in que to login to 4h 30m while i have been sitting in que to login for 2h? makes zero sense if i have been in que to login for 2h and ur approx is 1h 45m when i first click and i leave it trying to login for 2h how does it calculate i have to wait 4h now? should i have only had to wait 1h 45m or at the most double ur approximate? y does my approx time go up more as time goes by? shouldnt anyone trying to login after me have to wait til after i finally get logged in? also just checked with a buddy he had the same approximate login time on his screen 1h 45m ago he is logged in and i know i was in que before him cause i caled him and told him to login so we could play together so y is he logged in yet i havent been logged in yet?