Anyone who's browsing for something interesting to watch give up 40 mins of your time to watch this verrry interesting documentary I got shown the other day. Not ideal to watch if your suffering from loneliness as it might have the reverse effect on you; sorry. 
This is a doc that follows the lives of 4 men and their hobbies of doll collecting. Now I don't mean barbie doll collecting like keeping them in their boxes and not using them leading to increase in value through time, I mean collecting as in buying life size dolls, definitely getting them out of their boxes and definitely playing with them. Basically it's about these lonely guys who have some kind of social barrier in which they can only communicate with female dolls instead of real life ones. 
And yes if your wondering they do have physical relationships with them. 
It's weird and freaky but it's an interesting watch.