A flashback.
Portia's P.O.V:
I run to my bedroom letting all the tears I held back for hours. I saw Sherlock with Irene very happy and looking like a good husband and wife while I am his freaking fiancee. All the things I did for us to make this relationship work falls down. How could you lie so hard to me? Every lie you made is like I'm going to hell. Burning in flames of pain. How could you be casually cruel in telling me I Love You?
I cried myself to sleep and woke up with the sun hitting my face and burning through my soul. It's like the sun is waking me up from the dream that he made up. The scene of last night makes me realize how I drowned in this beautiful nightmare for a long time and it's time to say goodbye from this chain Sherlock. It was already three in the afternoon the first time I woke up so late.