My girlfriend came home and overheard my therapy session and listened in. Now she is very angry, how do I proceed?

My girlfriend came home to my on therapy though telehealth. She heard me talking about her and chose to listen for abiut 30 minutes before i realized she was home. she stormed out and is extremely angry at me. I had been tlaking about our relationship, and had in heat of emotions, jump to hurtful conclusions about how people around me feel about her, which is worry I misconstrued in my speaking as dislike. I had also been talking about iur relationship, some stresses, getting everything out and just talkimg through it. She says she feels betrayed and like she was stabbed in the back over this. I feel awful and I haven’t been able to interpret my feelings on this appropriately either, and have been responding with anger. How do I proceed? What do I do? Sorry for small details, its for privacy sake.