How pissed off would you be?

My EX girlfriend was telling people I was stalking her which is untrue but she was just spouting at the mouth like always & her EX husband got wind of it.Now the EX husband decided to take her to court to get full custody of there children & he used me as the reason why & his statement said that I was stalking her & threatning the kids & while I lived with her I abused the kids & her.First I never did any of the things that were said but I got no apology from the EX girlfriend for this & luckily the case was thrown out of court & nothing happened. My question is how pissed off would you be with your EX girlfriend who may of exonerated me but never even tried to apologize for what she said to many of her friends????