Jo, it's hard sometimes for people to get used to things. Even though they know that the changes you're making are healthy, they might be scared just to see things change! It's something people experience when alcoholics become sober. It's a great thing and they know that, but they feel frustrated because things are changing. Weird, but true.
Your partners might also be a little afraid that they'll get used to these changes and then you'll go back to your old ways and they'll feel frustrated...they may hold out until they are sure you're really going to do this. You'll show them that pretty soon, I think!
My DH said that he really believed me when he saw me toss a nearly full carton of ice cream right in the trash because it wasn't SBD safe. I was sure of myself once I got going and saw how good it made me feel, but to be fair, I'd done tons of other plans that I was sure of and gave up within a month or 6 weeks. So DH was right to be cautious of me, I guess. But he's definitely become incredibly supportive, even though it did take him a long time to get used to SBD and what was and wasn't okay.
I think support at home is so important, but you do have to make them believe you by sticking to your guns and not falling for any sabotage, intentional or otherwise. Sounds like you have the singular advantage of your partners possibly convincing each other to get on board...so let's hope that if one of them starts to see the light, he'll convince the other!
No worries about scandal...we have people from all walks of life here. It's a safe space, but you don't have to reveal any more about your life than you feel comfortable doing, Jo.
But it would be helpful for us to know what you want us to call your partners and what pronouns to use so we don't offend you!
We've had all sorts of fun monikers for our special someones. D (for dear or other adjectives when they're bad...
) combined with an initial for their relationship, F for fiance(e), B for boyfriend, G for girlfriend, H for husband, etc. is pretty common around here. That way you don't have to share names if you don't want, and you don't have to write out long words either.
My favorite moniker to date was Jenn's 'HB' for her 'Honey Bunny.' I'm thrilled that she's married now (YAY!!!
) but as much as I love seeing her write "DW" for her Dear Wife, I do miss that adorable "HB" from time to time.
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Keep posting here and stand your ground, Jo. I know you'll make it, and what's much more important, *you* know it!
Unsupportive Family
SeattleJo for hanging in there, despite your family and friends' support! They should be proud of the fact that you are working on maintaining a healthy lifestyle, unfortunately, they may feel threatened by the "new you." Reassure them that you are still the same person you always were before, just a whole lot healthier! 
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