Small Claims Court?

Ok my ex boyfriend as of now was driving my car and realized i had a pair of baby blue glasses in my side car pocket. His "girl-friend" whom I use to be cool with had rode in my car like twice but she left absolutely NOTHING in it. Apparently her glasses came up missing and she told my ex that she had been looking for them. My ex ASSUMED the glasses in my car were hers but weren't because her glasses are purple,black,and white. I threw away the glasses in my car because they belonged to me and they were old plus the lense kept popping out. So since he assumed they were hers until he found out they weren't she sent me a threatening text message threatening to take me to a small claims court because her glasses were $290....I broke up with my ex because this issue is his fault for mistakenly telling her my BLUE glasses were hers that I threw away. Anyways he has tried to tell her that they were not hers but she still says she taking me to a smalls claim court.

My thing is 1. She has no proof that they were her glasses

2.This case is just my word against hers

As far as I know all she has is what my ex told her but he tried to correct himself once he found out that they were not hers.

Long story short, does she even have a real case? Do I need a lawyer? What do I do?

PS: I refuse to pay her $290 for a pair of glasses she misplaced