Honestly both Anisa and Ian needed to be paired up with smarter people who could've tardwrangle them both. Instead of them being together enabling the worst of eachother's traits.
Ian needed a woman that was actually smart and compassionate. Encourages his ideas, but also keeps him out of trouble.
While Anisa, like she said, needed someone to keep her on a short lease, and keep her from destroying her and her partner's life. That's why every era of Anisa keeps gravitating towards smart or at least seemingly smart and confident men like Leafy, Joji, Maxmoefoe, Pre-cucked Idubbbz, Chrisraygun, Her tatoo artist, Her barber, Hassan, etc.
But they're both too deep in the hole with eachother. I don't think they're ever going to break up. At least not without some sort of intervention.