Loose Ends -

Maggie and PJ at the pub just after they've announced they're getting married
Maggie practising her wedding vowels
PJ comforting Maggie after her house was burnt down
PJ and Maggie after their 'fight' scene

One More Day -

PJ telling Maggie she has to move on and start again when she's on witness protection
PJ telling Maggie he's going to go with her (onto witness protection)
Maggie dying :(

Aftermath -

Jack and Jo just after they've been told the news of Maggie's death
PJ placing the engagement ring on Maggie's finger (in the coffin)
PJ sitting at the place where Maggie died after the funeral