what exactly do you mean by "VERY SERIOUS"? I'm thinking very serious and lonely might be a bit dangerous for any prospective cabin mate
If all else fails, invite me along as it's way easier as a two friendly guys , to meet all the unattached ladies that travel with a girlfriend.
........... unless I go with Ruthless instead - she's my type as long as she doesn't blow the smoke in my face too much. She can be my cougar and I'll be her sugar nephew.