How would you respond to this

My ex best friend texted me "Hey girl". We haven't spoken in 6 years. Want to know the reason we stopped be friends. During my WEDDING VOWS she decided to confess her love for my husband.... We had been friends 18 years. She told him she couldn't hide her feelings anymore and she loves him and if he feels the same she will be in her car. Her dumbass sat out there and embarrassed herself for 2 hours. I'm pissed, my husband is confused(he said he thought she was gay). She literally was hoping my husband would say he's in love with her too and drive off with her.... So how would you respond to a "Hey girl" text