8 years downs the drain

My ex broke up with me after 8 years. We lived together and had been together since we were teens. He was my first everything and then we experienced deaths in our families financial troubles and joblessness. It was a lot I know but we just kept pushing through I had gotten really depressed about my job prospects as I know it was causing him stress and then I got sick. He waited until I started to find something new and then I noticed he started taking a liking to his co worker and then everything felt like I was on a roller coaster that had no off switch that everything happened and I didn’t even have a choice and now we share custody of our dog he maintains his relationship with my younger siblings and I speak to his mom sometimes but he just stopped loving me overnight even the day we officially ended it that morning it he told me he loved me how does someone just jump ship like that I’m so hurt lost and confused