parental rejection

so I came out to my dad about two hours ago. that was pretty much one of the most horrible moments of my life. I hope he realizes that it hurt as much for me as it did him, to tell him. my soul aches a little bit and my eyes hurt from crying. being rejected sucks but being rejected for who you are by your own parent is completely monstrous. he said " like I don't have enough problems to worry about" but I fail to see how me being pan is "his" problem. I'm not at all angry with him, I just expected better from my father.