Frac is having such a tricky time with Fric because she has so little negative memories to draw on.
When Frac was dating an asshole named Olaf, he had cheated on her, and treated her like his personal slave for about 9 months...so when the time came for them to part ways, though Frac was startled (about the infidelity), and shaken - and maybe wanted to stay - in her heart of hearts she couldn't. She had stopped trusting Olaf months before the truth surfaced. For her to walk away from that, it was hard, because of the humongous, short notice life change that accompanied it. But it was easier because she could look back in her journal and see all the shitty shit Olaf had put her through. From leaving her at his work Christmas party for hours alone, or expecting her to do his million pounds of laundry that he accumulated every week, or taking complete care of his dog (which she would've done anyway because that dog was her kindred spirt, oddly enough), or coming home drunk every night. Leaving Olaf wasn't that taxing, though the mental damage he did was pretty hefty, THAT took time to recover.
When Frac dated a bloke named Racer, it was kinda hard to leave that one behind as well. Though it was the shortest relationship in recorded history, it was 80% lovely. They had only fun together, except the last few weeks - which were torture. It was hard for her to get out of that one, because NOTHING had gone wrong. They never had fights, they never had bad times, Racer just stopped wanted to hang out with Frac...apropos nothing.
Frac later found out that Racer was having a world of drama at the time and felt panicked, with made him come off as aloof. But Frac still doesn't excuse him :)
As for Fric...when she thinks about him, only the best days pop up. Which isn't how the human brain naturally operates. Generally, it's trained to focus solely on the negative. And though, those memories are there, they're in stock, they aren't at the top of the list. The top of the list is a sunrise in middle america. It's putting together Ikea furniture in Portland. It's seeing gigantic cows and getting an evil little puppy together. It's spending a Sunday in a hammock. It's spending a weekend in our nation's capital. It's eating Mediterranean food, Fric's most loved meal. It's Frac's first Dodger game. Or it's Fric splitting his head open trying to help Frac clean up her vomit :( It's so hard for Frac to let go completely, because of the strong connection they share, because of all the amazing times they've had, because she never felt more sure of the fact that she'd found that last squiggly piece to her puzzle. And that she was his squiggly piece as well. She'd never felt this way before. They like doing the same stuff. They listen to a lot of the same music, they drive fast, they love adventures. It's so much stuff that it's overwhelming.
Their only fights were regarding the F,F&F issues.
If she just had reasons for this split to be appropriate, it'd be easier. And Fric's happiness is a huge reason, reason enough. She just wishes there was more. Because all these good times, she'd only trade it if he asked her to. And he has. So she is.
And it gets easier all the time.