I don't care that it's been over 10 years, I want another season of ABC's Selfie...
It wouldn't be that hard to work in the decade time skip either, like let's say Henry was still somewhat emotionally constipated when sg big like a very ill family member happened and Eliza got a great opportunity abroad she didn't turn down after being unable to reach him for weeks. Henry gets a skewed report of Eliza's leaving.
They are both hurt and don't try to reconnect thinking the other got cold feet about deepening their relationship.
Present day, it's 10ish years later. Eliza has been through several divorces, been made infamous on a trophy wife reality show perhaps while Henry retreated to himself mostly, but has an adorable child from a previous relationship.
They end up working on a project together again and it's part distrust bc they have both been hurt last time, part moments of shared joy and rebuilding their relationship with some more maturity. The child's welfare also makes Henry more cautious about changing how he has been living, and specifically restarting things with Eliza, who can be quite chaotic (the reality tv stint doesn't help with this image). But she will have a great way with the child after they get into some scrapes together.
Also, if they only want to do one season, the rebuilding can be a bit of a race against time, because after the project Eliza will have rebuilt professional reputation and won't have anything keeping her there...