Little Froggie, if anything is threatened in social media, report the person to Terms of Service (TOS) for abuse, if only to have it on record that the person is cyber bullying you. I did so with one particularly nasty series of messages that were sent to my son about me. Honestly, if you would read what this person had the lack of a censor chip to say, you would plotz. I am sorry that you are going through even a little bit of this.
BLOCK THIS PERSON from being able to contact you in any way on-line.