Sorry to hear you've had such a bad experience at work. I've had moments like that where it feels all the defenses come crashing down and it does leave you feeling very vulnerable and exposed.

I think it could be a positive thing that she chose to reach out to you and the fact that she also helped another worker means she's a caring person. By the sounds of it she also waited to speak to you alone as perhaps realized that you would be upset which shows she's a nice person.

If you're having trouble facing going back to work, could you take some sick leave and go see the doctor? It sounds like work would support you and understand that you're having a hard time at the moment. I'm sure they'd be happy to support a valuable employee through some therapy.

Take it easy and hope you have a better day today.