A week after Andy's death everyone was doing their normal routine, waking up, eating breakfast, going to the firehouse, put out fires, going back to the firehouse. Everyone was doing their normal routine, all except Alexandra Darden Severide, the younger sister of the deceased. Alex didn't even got out of the house, till today. She woke up late without her husband next to her, knowing he went to his job on Squad. Every time he went to work she feared she would lose him like she lost her brother, just to think of that it killed her. She got up from her bed and got dressed to go to the firehouse to do what she is thinking of doing since the day her brother passed out.

A few minutes later she was in the firehouse, thanking to God for no one to be there, but hoping the chief was. She walked to his room and found him there.

-You didn't went with them? – she asked him taking a seat in front of chief Boden.

-Alex is so good to see you, how are you, are you okay? – he asked getting up and walking to her.

-I'm fine, I just need to give you this. – she handles him a letter.

- What is it?

- My resignation letter. I can't be here anymore, even though this is what I love, but I can't be working and fearing of losing Kelly like I lost Andy.

- Does Kelly knows about this?

- No, but we will talk about that later.

- Alex are you sure that this is what you want?

- No, but I can't live in this fear, if I do that I will be always concerning about Kelly's life. And I can't do that if I want to be a good paramedic.

-Alex…

- It's my final answer. And I don't want you to tell them till that is in my file.

.

She stopped talking and heard the trucks coming knowing that the love of her life was there also. She and chief Boden got up and shake hands knowing that was their farewell. They walked out of his office and walked to the kitchen were everyone was, they stopped talking when they saw her, she waved at them and walked to Kelly giving him a kiss, a long and full of passion kiss, because that was going to be their last kiss, she mumble a I love you before heading out. Going to her house to prepare to do the most painful thing since ever. She was going to leave.

A year passed since that day, since the day that Alexandra Darden Severide left the Firehouse 51 and the love of her life, they still remember that day, the day after she went to the firehouse to say her goodbyes, the day after when Kelly went to the firehouse demanding to the chief to tell him where was Alex.

Kelly went home that night, to get a good bed rest so that he could be fully charged for the next day, he wanted to go home to be with the love of his life, to be with someone that need him the most. But when he got there, she wasn't there, she had left, her things were not in their room, her car was not in the front door, and everything that was hers wasn't not in their house. Kelly thought that was in the moment, that he was dreaming, but them he saw a letter with his name on it, knowing that it was Alex's hand writing. He read it and understood that it was a farewell from her, that she had left, forever away from his life.

He didn't even slept that night, he wanted to go to the Firehouse to understand what she was doing there in that day, if she was coming back, if she had left them too. So he did, he went to work that day knowing that he was not going to see her.

-Chief can we talk? – Kelly asked the chief in the first moment he saw him that day, he nodded – What was Alex doing here yesterday. What did she told you? Because she was not home today, and she left me a letter saying that she left, everything.

- Oh I have to tell you and to the rest, come with me. – they walked to the kitchen where chief Boden asked for their attention – Alexandra Severide yesterday, she came here to handle me her resignation letter, she left firehouse 51.

- Kelly did you knew this? – Shay asked him worried –And now that we talk about it, she was not home last night.

- That is because she left me. – Kelly says low, sad and ashamed – And I don't know why.

- She said that she didn't wanted to have the same feeling every day when you came to work, she didn't wanted to feel the same she did when she lost And. – Chief says and walks to him patting his back – I'm sorry lieutenant.

- She left us all. – Dawson says feeling down and already missing her.

That day happened a year ago, a year away from every one. A year since she was last seen by the people of Chicago. But that was not going to last forever. She month ago went back to the duty of being a paramedic, in a firehouse away from 51, but she was home sick, so she toke care of the paper work so that she could back to the firehouse she missed.

So that day, she left her house knowing that she was coming back home.