Originally Posted by oceanconcepts
.....A relaxed attitude helps, and as someone said, valuing the partnership more than the boat.......
This is excellent advice.
Unfortunately, most just can't pull it off. People also change their opinions of others over time. One couple gets divorced (on average that's more likely to happen than not) and suddenly you can't get along. Financial circumstances can change outside one partner's control as well.
Best to be positive but prepared.