After Series Alternate Ending

Let's recall the situation where Harry and Tessa decided to be apart. Tessa lived in New York with Liam and Harry followed them until Tessa found out about the manuscript and decided to call it off with him.

Years later, Tessa has moved on and met Zayn in NY. They've rekindled their friendship that turned to Romance.

Can Harry and Tessa still make it together with Zayn (again) in the middle? But it won't be the same anymore knowing they've both changed and are more mature to the situation.

This is just an alternate ending to After series. It doesn't have to do with the original ones.