How to deal with family

I'm not sure where to put this.

How do you deal with family (my mother in particular) who insult your weight loss.

Yesterday, my mom called and offered to buy me a bathing suit, (so far so good), but she then says well I got the 12 you probably need a 14... I've worked my butt off to lose 25 lbs in the last 6 months and I'm currently smaller than her and still losing. When I said well I really need a 12 because I've lost 25 lbs, she very snidely says, oh you have... like she doesn't believe me... Not that she's noticed at all or if she has she hasn't said anything.  This made me so upset, she's always been one to push it in my face that she's a smaller size than me, but not anymore.

And on top of the offensive conversation, I'm so angry at myself for being almost 38 years old and still letting things she says get to me so...

So what would you do?  I'm considering letting her order the suit in the wrong size then making her return it when it doesn't fit or... just getting my own suit.  My birthday is coming up so this is supposed to be a birthday gift for me...

And how would you handle these situations in the future...

any ideas?

I recommend seeing a counsellor (I am one, but that won't really help you lol). Basically, you probably can't change her, so what you can change is your actions. By this I mean: limit the amount of time you spend with her, and drop hints that what she says is offensive. If this doesn't work, you may have to explain that she is out of line. If you are sure confronting her wont work, you can just limit contact more and more till you are safe emotionally. You are doing great things for yourself, and that must come first.

Thank you for your advice.  It's always been this way.  I've sort of learned to ignore it, but that doesn't make it hurt any less.

It sounds like she's jealous. My Mom was jealous of how I looked. So she went out of her way to get me fat. Then when I surpassed what she thought would happen she happily laughed quite often. Then after a while, she got over it and went back to being a mom and decided to get worried about it instead. You know, they are older, and they may see themselves as how they looked when they were young. And then don't see how they want to see themselves anymore, then see us as having something that they want, for some people that is really hard on their self confidence. Until they accept that they have chosen to be the way that they are, until they see that they can change it, and choose not to. Then after she went through that process, she got a lot happier about it. 

Well if your this age and haven't tried to change her habits she's never going to Change because you keep letting her get away with it