Really sorry to hear you got triggered like that and glad to hear it's been reported. As you said yourself you've got through so much and come this far. That's because you are strong, even now. There's nothing weak about feeling hurt or upset and you can get through this, but remember you aren't alone. Don't be afraid to ask for support or talk to a friend about anything on your mind or stressing you. It could be possible that things built up a little too much and you got pushed too far and it overwhelmed you, which can happen when trying to cope with a lot.
Really hope you'll be ok and if you need anyone to talk to just
pm.