Hi ladies...I need some advice on how to keep my family together!

Basically, in February this year, my step-brother (We'll call him N) broke up with his girlfriend of 5 years (we'll call her K) and they have a beautiful little girl together. A few weeks after this, I noticed that my cousin (We'll call him S) who lived with us at the time was popping out at silly times with silly excuses - "Im going to get a KFC" at 11pm and coming home at 7am...clearly not the truth. I asked him outright what was going on and he told me that he'd been seeing K for the last month or so.

Great...My cousin is seeing my step-brothers girlfriend. World War 3 is about to commence.

Anyway, I kept this a secret as it wasn't my place to say anything. I felt, at the time, it would've caused more harm than good if I'd said anything. I told my H2B and he agreed that we should keep quiet.
When it was exposed in June this year (S left his car parked on the drive way at K's) everyone was strangely calm. It seemed that K wouldn't leave my step-brother alone but now her and S were sorted, she seemed happy and left N to it.

But...I know what she's capable of. She'll happily use her daughter as a weapon against N and also my Mum, who's finding this amazingly difficult. S lived with us for nearly a year a lied to her for half the time he was there. Mum wants to warn her sister and niece (S's mum and sister) about what K is capable of but I've told her not to. I've said that the best thing to do is just wait it out...he's hurt all of us by going about things the wrong way, so we'll see what happens when she f*cks him over. (Excuse language!) K has wormed her way into my family and broken it up. Whenever there's an arguement or disagreement, Mum sides with N (he's her step-son after all) and the rest of the family side with K. I feel so sorry for my Mum because K is just pushing her further and further away from her family. And her family cant see it. They're so wrapped up and believe that butter wouldn't melt in her mouth!

K is putting a massive divide throughout our whole family. I'm currently writing the Guest List for the wedding and I've got no idea who to put on it. Obviously, N will be there as his little one is my flower girl. And I should invite S, he's my cousin after all. However, I dont want K there. She's a manipulative cow and I dont want to end up getting a bouquet made of bricks, just in case she starts!!

So...what do I do? How do I get my family back together? Who do I invite to my wedding? And how to do I stop all of this hostility?

I'm really sorry for ranting...but I feel so much better now I've written (typed) it all out. Hopefully, some of you clever ladies will have some ideas? Have you ever been through anything similar?

I hope I've explained everything well and hopefully you'll know what to do!

Thanks ladies xxxx

Personally I wouldnt worry about it just yet! You have 20 months for your wedding so if K is as bad as you say she then S will come to his sence's and see her for what she really is! ANYTHING can happen in 20 months so dont worry about your guest list just yet.
Make a rough list so you have an idea but thats it!

As for how to get your family back together well theres no easy answer there im afraid......they will either divide because of her or not and im afaid theres not much you can do except let all concerned know that if and when things go bad between them YOU are still and always will be, there for the all important shoulder to cry on!

How does your brother feel knowing that his ex is now dating his cousin?
It cant be easy but unfortantly it does happen :-(

Thanks Hails...I really don't know if he'll ever come to his sense. He's not been right since his little girl passed away aged 3 months, she'd be the same age as K's little one if she were still here so she's got what he wants. And he's very comfortable financially so he's got the money that she wants.
My brother was fuming at first but slowly calmed down. K leaves him alone when she's getting on well with S so he's happier then. It's when they argue that she comes crawling back to my brother.

The whole situation just angers me!

Thanks for listening to me rant xx