Threats and taking advantage

What is the name of your state? Texas
Question is someone is telling me that he can take me to court and sue me and I could go to jail or meeting him online and having sex with him. We did have a relationship for 5 months and it ended about 8 months ago. Weve been in contact with each other and said some harsh things back and forth, but could I go to jail or get sued for this.????

what are you talking about?

Last I heard it is not generally illegal for two consenting adults to have sex, regardless of where you met.

Care to give some info that means something?

How old is the person you had this relationship with?