So what does really happen after you hit 10k? Nothing special? However, the game still shows that I gain point with the companion but nothing else happens. No new dialogues, nothing. If this is intended behavior, that sucks so bad. So you can romance/marry a companion, then hit 10k and its all over. They won't ever talk to you for the rest of the game (which is very very long time compared to the time spend leveling) although at one point they wanted to have your babies!