Thomas Shelby was your dad. After his wife, your mom, was shot and died, he became colder and more stern with you with no emotions and full of anger but he deeply loved you. You guys were now fighting (father and daughter). You talked abt his wife that died, aka ur mom. He pushed u onto a wall and held u tightly and pointing u with his finger he shouted

MY FUCKING WIFE, TOOK A BULLET MEANT FOR ME!!!