Eclipse was your creator. He created you inside of Moon's head as a tool to keep him(Moon) at bay. Not as an actual brother, just as a tool. You eventually were starting to become more sentient with each passing day, so he started abusing you, mentally AND physically. He even blew you up once. You were brought back to life with a new body, along with astral powers that you learned about much later, and you had to betray Eclipse to escape his abuse. Eclipse ended up dying, and Ruin created a clone of him that had his same memories, personality, etc. This Eclipse knew he wasn't the same one as before. He basically was the same Eclipse, but he also basically wasn't. Either way, you had developed an intense, unforgivable hatred towards him, clone or not.

You started going through a practical crisis. By that, I mean you didn't know what your purpose was, and that led to irrational things. You began using dark star power, and the others ended up finding out, so Earth and you had a conversation that quickly changed into an argument. You were being a selfish jerk in the argument though. During the argument, you were thinking about the hatred you had for Eclipse, and that made you angrier, until you ended up exploding and zapping Earth with dark star power. Now she has to deal with chronic pain the rest of her life. You were kicked out of the house (With the assurance that your family still loved you, they just didn't want you hurting the kids) and your powers were temporarily unusable. Castor, Pollux, and Taurus would give you back your powers when you got yourself together. And that includes your situation with Eclipse. You weren't going to ever forgive him. But addressing it would be the best thing to do.

Solar helped you teleport to the dimension Eclipse and Puppet stayed at, and Moon told you Eclipse was in the theater. You went inside and told him you wanted to deal with your hatred for him and perhaps manage to let go and move on. He was willing to listen. And here you guys were.