I am sorry that the experience triggered certain things... wel... may be it is good thing that you are dealing with these emotions.
I can relate. I have recently starting getting to know the feeling of loneliness. I have been single for over a decade; I have been living away from my family and friends since I was 15. Now, I am 40 years old. And, recently, I have been severely suffering from being lonely which is a feeling that i am not used to.
I have been working on developing friendships, which has been helpful. But friends are not permanent. they move away...
Sometimes I get really scared to continue navigating life all by myself. I think it has something to do with getting older.