Lyric discussion by Biddy612 

Cover art for Underdog lyrics by You Me at Six

I think it's about someone who had new found popularity and took advantage of it.

i think they had someone good going with one girl and realised he could get any girl he wanted so he took advantage of it and messed around with other girls. Then when everyone found out and everything was ruined he realised that he was stupid and he had everything he needed in the beginning.

hence: "it's such a shame you had to find out this way" he only founded out that he loved her when he lost her