Reluctantly Yours by Jessica Marie Holt

Ellie and June have been neighbors and best friends forever. Together, they’ve weathered it all—marriages, babies, strange wardrobe choices, terrible haircuts, small-town gossip—only to have their friendship come out stńronger on the other side.
But now, they’re up against a hurdle unlike any they’ve faced so far.
Unmarried grandchildren.
Tragically—and inexplicably—James, Ellie’s absolute treasure of a grandson, is single. And so is Sarah, June’s unmatched delight of a granddaughter.
But these Grannies aren’t worried. They have an ace up their sleeve
The Granny Pact.
Yes, these doting grandmas have vowed to engineer the romantic happiness of their grandchildren—by any means necessary.
Unfortunately, James and Sarah are not that easy to convince. And, unbeknownst to the grannies, their two grandkids share a past that will make their job much, much harder—and might even test the limits of their fifty-year friendship.