you and Spencer used to date 16 years back, and you had a daughter called Autumn which you never told him about, she is literally the spitting imagine of Spencer, same hair, same eyes, same facial structure, same personality, same IQ.

so she did some tracking and found her father worked in the BAU, and she arrived, not knowing that you just purposely never mentioned him.

she walks in, asking for Spencer Reid as she starts yelling at him, calling him a ‘dead beat father’ and a ‘pathetic man’