Sorry to hear you are having a rough time. I know how that goes. My last bf had actually bought me my first big tank, so when he left me, I still had the tank as a reminder of him all the time. I loved the fish though, so I was glad to have it, even though it reminded me of him. It's a moot point now though, because I moved across the country. I brought my fish in styro coolers, and I bought a new tank at my new home. I still have a couple of the original fish from him. But, I don't mind anymore. My point is simply that I know it sucks, I am very sorry you have to go through it all. But, it does get better.
I attached pics of my angels that he bought me. They have been with me through 3 houses in 2 states. They came from Washington to Nebraska, and stayed at a motel in Utah. They helped me move my life forward, and I am in a better place now. This hobby is very rewarding and full of amazing people. We are here for you.