One of my childhood friends got raped i did somthing bad?

Well My friend i know her since elementry and she came crying to me cuz im all she got and told me and i was mad cuz my gf lost her baby so i saw the three boys and i kicked their *** and only got a bump on my head but one boy face bloody the other arm and leg Broken and the last one ran and now i feel just evil i was shaking wondering what have i become was what i did wrong cuz i feel bad and good at the same time