How smooth things went depended a lot on the MC's choices in this chapter. It's clear if you're on the low-love/low-trust Jaye path by the end she's well on the road to a future that doesn't include the MC in business or pleasure, even if she hasn't quite pulled the trigger on it yet.
Perspective is required here. They literally grew up together. Same age. Shared classes. Shared everything. Not twins, but from an environmental perspective might as well have been. So then an event or two happens and the MC over reacts. Then she over reacts to his action(s). Both go to their respective corners stubbornly convinced they are the wronged party nursing their wounds. But neither can discard a lifetime of trust, love, mutual reliance, and continual closeness. Those factors and their mutual sense of betrayal feed their combativeness to each other, but underneath it all they both want only to find their way back to what they've both lost.
The air gets cleared. Both find that they've utterly misjudged the other. Both feel guilty because they over reacted, when in hindsight sorting it all out would have only required that they put the hurt aside and trust the closest person in their lives. Both feel responsible for the gap they created between them.
So they forgive. At least they forgive each other. Forgiving themselves is probably going to take a good deal longer and be more difficult. But forgiveness is an amazing thing. Set the other's "mistakes" aside and a lifetime of trust reasserts itself.
Sure there will be issues. Triggered reactions. Human's are wired that way. But they'll both be very careful not to over react and probably to clear the air immediately so that nothing festers and get in their way.