You and Spencer were together for four years, you were even engaged now and were planning your perfect wedding with your friends in it.

But then something felt wrong. You would find random things like lipstick, hairbrush or hairbands that weren't yours. But he always told you that it was yours and that you probably forgot about them. And you believed him.

Now you just got home from staying at the BAU for overhours to help Emily and JJ with some late case files. You could feel that something was wrong as soon as you stepped into your apartment.

You saw Spencer sitting on a stool in your kitchen, with his face burried in his hands, and a empty glass placed beside him. You slowly took off your shoes and walked closer to him.

"Hey there" You said placing a soft kiss on his cheek "what's on your mind?" You looked between him and the empty glass, and you could feel the alcohol from him.

"I made a dumb mistake" He said, his voice began to break as he looked up at you, his body was tembling "I'm so sorry" he whispered out with tears in his eyes.

And then you finally understood. The things you found weren't actually yours, every hairband you found and threw out weren't yours, every lipstick or hairbrush you kept but hid weren't yours.

"I'm so, so sorry" he whispered again and leaned his head in your chest, and you just stood there, with tears in your eyes, in shock, hurt and disbelief as he sobbed into your shirt.

"Who is she?" You asked in a quiet voice, but you didn't cry. Not yet. You needed to know everything. Every single detail, even if it would break you. You needed to know.