As year five of my split from my ex-husband looms, I sometimes ask myself: Why aren’t we back to being friends yet?

Shortly after we split, I confidently told myself, my kids and my mother that our relationship started as a friendship (1985-1989), then became romantic/marital (1989-2008) and was now back to being a friendship (2008-eternity). See? Nothing to it! Toss the wedding bands aside, and—boom—just like that we’re back to being friends again. It seemed like a positive way to spin it and a lovely idea, given that my ex and I never stopped fundamentally liking one another, even if the love part went awry.

But so far, the sweet post-marital friendship I envisioned hasn’t quite panned out; we’re not even Facebook friends. There was an unforeseen circumstance involving another woman, about which I’ll be terribly cryptic, but that notwithstanding, it’s all turned out to be more complicated than I could have imagined.

It’s not that I hate my ex. But what I’ve come to realize is that when you have kids and joint custody, the post-marital relationship is the real til-death-do-us-part one. It’s the arranged marriage after the voluntary one–and for me, it sometimes requires a lot more effort.

Almost every day, we email or talk on the phone—about summer plans for the girls, about whether the girls need new sneakers (probably, don’t they always?) or should have less screen time. (Yes, of course. Their brains are melting.) About this or that adorable/infuriating/worrisome/brilliant thing one of them did or said. (Oh, and did you send a check to after school? Because I didn’t.)

We work one block from one another and often meet at a mid-point to exchange something one of the girls left at his place and needs at mine. Then there’s the weekly transfer of stuff from one house to the other, the incessant stopping-by to get something someone forgot, which usually involves a little chat on the threshold of the house that used to contain the four of us.

My ex and I are pleasant and friendly enough during most of these exchanges–but I, for one, could use some space. I find it wearying and confusing to constantly be interacting with the man who made a big fuss about living separately. It makes for a chronic low-grade tension, a perpetual neither-here-nor-there-ness. Limbo personified. How do you really move on when your ex-spouse is in your face all the time? And yet, what choice is there? Who else is going to help me figure out summer camp? Who else shares the same ridiculous degree of pride in our daughters’ sparkling report cards? Who else is my ex going to depend on to host the girls’ birthday parties and fill the goody bags? Who else does either of us call when one of the kids is sick or when the help required can only come from the other parent? We still need each other, which is both comforting and claustrophobic.

I’m not sure what form a post-marital friendship should take, or if the very concept is pure oxymoron. Maybe friendLY is the best one can hope for. Can you really go back to holding–rather, shaking–hands once you’ve given birth in front of someone? The notion of remaining “perfect pals” with your ex, as the book The Good Divorce describes, is, frankly, kind of weird. We’ve all known ex-couples like this–who hang out and even vacation with each other and their new partners. What is that and why?

It’s hard to know where the boundaries are. When my ex and I are too chummy, I wonder why we’re not still together. On the occasions when he comes over–say for Christmas morning, or one of the kids’ birthdays, I sometimes think: “Hey, I have an idea. Why don’t we all live under the same roof and that way I’ll have another adult to help me cook dinner and fix stuff, buy milk on the way home and get the girls to bed?”

Conversely, it feels icky when I’m too angry or chilly towards him. When he’s looked clearly sad or stressed, I’ve even had the crazy impulse to give the guy a hug–but how do you hug that? You can’t.

It’s complicated, for better or for worse.

Have you managed to bridge the friendship gap post-divorce?

Christina Frank is a writer living in Brooklyn, New York. She blogs at Living in Splitsville: Notes on a Midlife Makeover

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