I have some wonderful 'real' friends on line. I don't have to see a person to befriend them. Many years ago I belonged to a Chatroom, and I got chatting to a person ( male) and we both had the same type of very weird humour.
He was on the heart transplant waiting list, he was only 34 years old, he was married but no children. Over a period of seven years we talked for hours, as I am in Oz and he was in the US our time difference worked well then. He was always afraid to go to sleep in case he didn't wake up. So I would stay online with him until the sun came up. I got to know his wife really well and we got to talk a lot on the phone too.
He wrote poetry and so did I so we would share those musings with each other. I got a parcel one day from his wife who had put our poems together in bookworm and had them bonded with a lovely cover. Something I will never part with. Then I got an email to tell me that she had come home from work and he was in his chair but had passed away.
To say I was devastated was an understatement, also my husband as he had been part of this friendship. He was cremated and half of his ashes were scattered at the beach where loved to go and the other half his wife brought them here to Australia, so we got to meet physically and we put them under a tree that we planted with permission in National Park.
This represents his life, it gives shelter, sustenance and it signifies life. So every time I go there I think of his life, not his death. I am so thankful for those years of friendship, he was able to tell me of his fears that he couldn't share with his wife because of how hard that would have been for her. I could tell her after his passing of how much he loved her, how much she had brought into his life and he never wanted to leave her.
So yes these friendships are very real.