Did I do the right thing ?!please HELP !!!!?

[X3.:jOK3R:.X3]

o i "was" talking from Nov- to beginning to feb to this guy and i really liked we would talk for hours on the phone and txt everyday unfortunately we lived two hours away and couldnt be anything .,but i stilled liked him and our communication didnt change so last friday we hung out and messed around ..a couple days later his homeboy told me he been talking to this girl for a month and a half and i checked his fb he didnt have anything indicating a relationship, I checked the girl profile and she has pics and love quotes, I honestly felt bad so i sent her a message " Hi,you dont know me but i know of you and this has been weighing on heart because i messed around with "him" friday I was visiting friends in the area and honestly if i knew yall were talking i wouldnt have done anything and that isnt my character i just wanted to apologize bc I see yall dating and didnt know anything about it" she read the message then the female blocked me ....did I do something wrong?!