Was i wrong for letting her know or should i have just stay out of it. NO STUPID ANSWERS?

my friend was not talking to me for a while and so i had ask her close friend did i do something wrong she said not i said ok i need to tell her something very importing about her man she said not now because she was going through things so i did not tell her for like 8 weeks well she came over like to days ago and i told her it is going around the your boyfriend is a child molester is that true she said no i said ok and left it alone them i went out side with her and three other people, then she told her other friend what i herd . Now it was just me and this girl in my house talking face to face and no one knew but me and the person who told me well any ways this girl boyfriend takes it upon his self to go in and say what was going on well he came out calling me a fat b**** and more but i was just trying to help i did not get mad at First but then he got real nasty talking about my kids and more well i got in his face about to kick his but but then the police came and got me but i was to mad so i black out and push them off me and went to try got hurt him but more police men came and took me in side(that what my men told me) well i did not go to sleep that night i went to sleep at 10 in the am... i thought it was all over with now b ut No she coming knocking on my door and trying to fight me but all i did was tell her what was going around now her daughter is 12 and she just got a abortion .... tell you how much she cares about her but i told her this because i have three kids under the age of four so was i wrong with that what could i have done different...