Re: can I afford to continue sailing
The money is what starts it so equalize it. Dollar for dollar and if the family can't aford the extra $1,300 for her from what I understand then you must give up something to offset the expense.
Don't eat your lunch out during the week, don't eat out at the marina/weekend, etc. pack your lunch and your weekend food. Buy supplies for self and boat not at where the boat is slipped as most likely those are higher priced than close to home.
In other words you save that boating money and convince her to to enjoy it too. If all that doesn't work out you must pick the best of the two girls which most likely is the one you married (I did). After which you must make friends to go sailing with to get your fix.