To begin with, let me apologize if I have posted this in the wrong area. I'm new to the forum.
I am a mid-twenties NT female who has become close to a 62 year old male co-worker. We have a grandfather-daughter sort of relationship and occasionally socialize outside of work. As I have gotten to know this man, I have come to believe he has Asperger's. He fits every single benchmark, almost stereotypically. He has not been diagnosed. He often muses on the difference between himself and others, particularly that he is unable to control himself or "catch a break" in life. He has meltdowns at work and recognizes, to a small extent, the impact they have had on his career. He expresses frustration that he never had a girlfriend and talks at length about his difficulties maintaining friendships. He feels out of place and is often angry at the world. He is blatantly unable to see the effect that his behavior (lengthy monologues, the meltdowns) have on his social situation. (I say that recognizing that NTs have a responsibility to try to understand those who are not NT, and fully acknowledge that people in this man's life have failed to do so.) He is also subtlety bullied at times, although he seems to take this as joking between friends. This is by no means a comprehensive list of his "symptoms", but the things I have cited lead me to believe he is depressed. I have noticed he is becoming more and more unwilling to travel outside of his neighborhood and seems progressively more scared of the world, almost. He has no family or friends to speak of.
I would like to discuss Asperger's with him and see if he would be willing to be tested. I think learning about Aspies and finding a supportive community would help him feel less alone and out of control. I think learning about Asperger's would help him answer questions about himself and may help bring him a sense of peace.
I post this seeking guidance from people with Asperger's and/or NT people who love Aspies. Would this be an appropriate step to take? Or would I be wiser to let sleeping dogs lie? I don't want to offend him, but I do honestly worry about him, especially as he ages alone. I regret he feels his life has been a hard, arduous slog, and would like for him to have an easier go of things. I have no other experience with non-NT people, so I'm not sure how to proceed, or if I even should.
Any guidance or suggestions would be appreciated.