Casper is right, as sad as it is, pimd relationships are a infinite small portion of what a real life relationship is... I mean just the eye contact, a simple little thing in RL right ? Here you don't have it. Voice, smell, touch, etc...
I mean, what do you do? Just talk, talk, and talk. For what ? Prove your love to someone else hiding behind a avatar ? Fact, Talk is cheap.
I think it's more sad than "entertaining" ... It shows how deeply alone some people feel here, and I feel compassion for them, it's hard to be alone, but it's better to stay alone than having to crawl down into a fake-relationship to stimulate a dust of happiness, ending into a flood of sorrow, knowing it's going nowhere...