I'm not sure I really care.
I haven't watched Eastenders since they killed of Nigel Harman.
I've just seen the last 3 minutes on BBC3 and Mandy is in it and about to marry Ian Beale WTF? 
I can't quite remember who Mandy was except that she was friends with Sean Maguire (possibly).
What happened there then!
Can someone answer in 30 words or less?