That's selfless love. One that Ian didn't knew existed or that he could be the recipient of such pure feelings. That's why it hurts so much. In such short time, pretty sure Ian could have imagined a future with Jo and wanted to look back but Jo wants what's best for him. It doesn't have to be with him. Ian can have whatever happy future he desires with whoever he decides. He's growing and healing. And he will count his own stars.
Still sad tho. But well.
Yes both JoIan being selfless. Unlike someone else lol.
But what really matters right now is Ian choosing himself first. I know Ian will miss Jo he will keep it to his heart the only person that always chooses him. And who knows if Ian finally learns to love himself maybe he can finally say it to himself that he deserves the kind of love Jo gives him.

JoIan were both crying. Jo asked Ian if he ever love Jo during their time together and he said yes that wasn’t a lie. Ian wanted to turn around, but Jo told him not to look back! Jo was crying and said once you decide on a destination, don’t look back and just go. It’s heartbreaking they’re letting each other go. ╥﹏╥