I know it’s been said, but both Lapis and Jasper were abusive.

Jasper was the one that was desperate for Lapis to fuse in the first place, yes, but Lapis CONTINUED to hold Jasper down as Malachite. The question is, why? She was surrounded by water anyway, so if they were to ever break free, Lapis could just easily destroy her. Jasper was by no means “sweet” to Lapis during their time as Malachite, but Lapis flat-out admitted that she liked taking things out on Jasper, even mentioning earlier that she “missed” Jasper. She took her anger from the past out on Jasper by KEEPING them as Malachite. Again, if Jasper were to break free, Lapis could just easily poof Jasper at that point, as they’re so far out in the ocean and they’re surrounded by water. It’s more along the lines of Jasper starting it and Lapis continuing it. Now Jasper is desperate to become Malachite again for power. She LOVED being with Lapis because she felt that only she could handle Lapis’ “power”. Lapis, of course, realizes that they should never fuse again and says in a concerned tone, “No!”. It really is great character development for her. While Lapis liked being Malachite after a while, she’s trying to break free of it so she can’t hurt Jasper anymore. Jasper is too deep into it and WANTS to fuse again because not only is she used to it, but it gave her a huge surge of power, kind of like Pearl and Garnet becoming Sardonyx.

They were both wrong, and the way the situation was handled was great. It’s been said before, but the ending of Alone at Sea is the perfect way to describe an abusive relationship to younger viewers.