Wow that's so interesting about the Facebook thing! I personally would take that as a sign. Whether or not it's Jesus giving you the sign is irrelevant- the sign was there when you needed it and helped you make a healthy decision.
I felt extremely connected and saw all sorts of coincidences and signs before I went inpatient. I maintain that some of these were real, some of them were part of my illness. I still see coincidences/signs now that I'm stable but not as much, and I'm okay with that, because I think that part of the reason I was seeing all that was that a part of my brain opened up and I was TOO connected. It was beautiful but impossible to maintain.
I'm sorry you feel that your God has abandoned you. Someone once told me God is like the wind, we can feel him or her but we can't see him/her.
I don't know what you are looking at online, but Jesus is not the only way people find God- I am Catholic and it is for me, but I also believe that God is present in most if not all religious and spiritual paths.
Have you looked into Buddhism? I don't consider it a religion per se, and have no issues reconciling it with my other beliefs- to me it's more of a philosophy, and it's tenets have made my life a lot more bearable.
So that was a long way of saying to keep searching.