I believe it’s “I’m snuggly-wuggling with my bunny-wunny exclusively,” good sir.
If I have the option to input my own current romantic status on some website or boring email forward or whatever rather than having to pick from a list, I usually fill it in as “head over heels”. Mushy, but it’s appropriate. 
If I’m doing introductions IRL, I’ll usually call him either my co-mortgagee or The Boy - as in, " This is [name], The Boy". (and I bet you all thought it was just one of those annoying Doper SO nicknames)
I’d vote for that one.
Yes, I like that one too.
I’d go for ‘beau’ if only my father hadn’t named his nasty Rottweiler that.
I like “spoken for.”
Also: She and I are just friends. We just live together, go out on dates, have sex with each other exclusively, and would be really pissed if either did those things with anyone else. But just friends.
You haven’t listened to much rap/hip-hop lately, I take it?
Blahg! I will shoot you in the face if you say that in front of me!! (I’m kidding of course. that was funny.)
Us Texans have: “This is my ol’ lady.” Y’all are welcome to use it if you like.
“I’m fucking Matt Damon.”
We bumpin’ uglies.
Alright Zipp, have you hooked up with your new “friend” yet cuz I kinda’ think I know where your mind is at. 
Hahaha
No 
sniffle
“This is my partner-in-crime.”
“I’m currently entangled.”
“I have a standing appointment ::wink wink::”
Like Mitch Hedburg: “I don’t have a girlfriend, but I do know a woman who will be very angry with me for telling this joke.”
A couple decades ago in Louisiana my grandmother (“nanny”) called me “boo” all the time. It was used as a term of endearment and had nothing at all as far as I can discern to do with the word “beau.”
You shouldn’t call your ol’ lady “it”.
But, I’d like a pic, please?
:eek: No kidding!!! Um…sorry, guys. Consider my ignorance fought! And no, I tend to not listen to rap/hip-hop if I can possibly avoid it. Not my thing. More into Nickelback!
And I called my grandson “Boo” when he was little, too. But it had nothing to do with the status of our relationship!
Carry on!
Shouldn’t that be a ‘laying appointment’?
“This is my co-conspirator.”
“This is my slot B, Mary.”
“Have you met Sue? She’s the peas to my carrots.”
“Hold up, I don’t know my plans for tonight. Let me call my future babymomma.”
“Mom, Dad, I’d like to introduce Jane, the current holder of my deed.”
Dammit! You just made me squirt soda through my nose! 