Honestly, if you choose to mourn through eating a shit ton of bad food and destroying your body, that's saying a lot about your character. She could have gotten closer to him and relied on him for emotional support but instead turned to ice cream and french fries. Bad things are gonna happen in your life and dealing with them appropriately is important. I think he was totally justified in breaking up. Plus gaining 100 pounds in 6 months must have destroyed her skin.