I've lived in Germany and studied German history. Can't guarantee what I say is totally right but here goes. As far as I know, West Germans felt a mixture of pity, solidarity but also sometimes a bit of contempt. The GDR's inhabitants, (it was known in German as the DDR (Deutsche Demokratische Republik) were sometimes jokingly referred to as 'der doofe Reste; (DDR), meaning 'the thickos who were left over), because they were perceived as not having had the brains to get out in the 1950s while they still could.
After the wall came down, West Germans paid a massive solidarity tax to rebuild East Germany, and to some extent this caused some bad feeling. Also, East Germans were perceived as being people who might expect the state to just give them handouts, lacking in entrepreneurial instincts (in common with all the Soviet bloc, people got used to the big brother state looking after them in good ways as well as bad). and also perceived as insular and brainwashed, wearing bad clothes, not wearing deodorant etc, having 'sad' hair like mullets and generally being looked down on as chavs. East Germans perceived West Germans as rich and complacent, and uncaring.
I couldn't say whether an escapee would be more favourably perceived but I imagine so, a bit. West Germany actually used to buy people from East Germany in order to 'free' them, a certain number of people every year. I would imagine that a dissident or democracy protestor would be more favourably perceived. I certainly wouldn't think an escapee or emigrant would be less favourably seen than any other East German. it depends on who is judging them and why.
Also any East German of over 35 carries a certain Soviet-man baggage or consciousness with them, just of having grown up in such an odd society. With the exposure of the society as such a joke, films such as Goodbye Lenin and The Lives of Others, I can quite understand how your ex H felt weird about it and possibly how he would have sought to romanticise his story by making up the escape thing, especially as he was a vulnerable teenager at the time of the wall coming down, and it probably affected him a lot being looked down on as a poor 'Ossi'.. He would need to come to terms with it and start to see his identity as something valid and not to be ashamed of, and find positive things in his east German upbringing.