This hurts so bad.

Thought he was having trouble peeing, took him to the vet they said he had a UTI, prescribed antibiotics.. almost 2 weeks go by he gets much worse, stops eating all together. Not like himself, no energy ect. Take him back in to the vet, they do an xray tell me he had a massive tumor on his spleen that ruptured and he has 24 hours before needing to be put down. I dropped to my knees and screamed god, please god no. It tore my heart from my chest and stomped on it. My best best friend on this earth. I got him pain meds and took him home for the night, got 5 McDonald's cheese burgers, a box of plain doughnuts and sat with him until the appointment at 4 pm yesterday. Held him, loved him, kissed him. I'm no good right now. Rest in paradise my angel.