I fear for something much worse- they might end up forming a Codependent Relationship.

Great, now I am imagining Jasper in a wife beater and Lapis with a black eye from 'fall down onto down the stairs (at the bottom of the ocean)'

I'm kind of worried that if Lapis keeps that unstable fusion together her and Jasper might permanently meld together into one being and completely overwrite their personalities into one unstoppable creature made up of nothing but rage and hatred.