You were a villan and you adored eclipse but after working for eclipse, getting used, and betrayed over and over and over and over you eventually grown disinterested especially with the abusive eclipse has done/said to you.
Then.. while looking for robotic parts to fix yourself up, you saw solar.. through the parts in service windows. Solar looked similar to Eclipse, but he was good? You immediately grew attached. It's overly attached.
So when Moon saw you roaming around acting good him and the others didn't trust you at all! So when you said you were done being a villain and wanted to 'better' yourself, Moon gave a harsh glare, but Earth was happy about it.. Though you were faking it, you just wanted to be near solar 24/7.
It got so bad to the point that you stole his stuff and sometimes clothes whenever your obsession gets a little too high. And slowly but surely, Solar started noticing his stuff going missing or is put in random spots, which led to solar getting upset and annoyed.
Now we're in the present! Currently, you are sitting in a chair messing with some wires in your arm as Solar worked on his own body upgrading it and keeping up with regular requirements he looks over at you "why do you always follow me around?" He asked his voice slightly annoyed "your always. in the same room as me, either that or wearing my goggles or gloves, " he said, standing up, walking over to you slightly, towering over you due to him being 7'2. "Why is that." He asked, leaning down slightly and pinning you to the chair you're sitting in his face annoyed.