Someone I've known for a few years recently went from being in a serious relationship (they were living together) to being single to being in another relationship within a few months. The personality changes I've seen in this person have been staggering. Before, she was a rather miserable person to be around: she would talk about what future jobs she wanted and would talk about having to work in a certain type of institution because she was "destined for greatness". She'd ask me inappropriate questions about my relationship: "Hey, are you guys still dating?", followed by "Hey, are you guys still broken up?", back to "Hey, are you guys still dating?" (note: I would lie to her at each stage, thus perpetuating the questions). You couldn't make any sort of joke or comment at her expense without tons of stupid snarky comments becoming of a fourth grader made in your direction. Then she got dumped and became a nice person to be around. One could have a friendly conversation with her, and even crack jokes at her expense and she would laugh with you. She'd ask about other people's relationships not as a form of gossip but as a way to find out how other people deal with long distance and separation. She stopped acting so self-important and entitled all the time. It was even a topic of discussion among my group of friends that so-and-so had now become a tolerable person, much to our collective relief. Then it all came crashing down. She began acting self-absorbed again. She'd ask you to plug in your laptop even if she was sitting closer to an outlet than you. The snarky comments. Not surprisingly, she again has a boyfriend. I don't know what it is about this girl but her being in a relationship results in her being a massive bitch to everyone else. Lord only knows how she treats her boyfriends. Focus: Do you or your friends undergo personality changes when going between relationships? Are you "that guy" that abandons his buddies when you have a girlfriend?