Why don't you just delete the whole relationship status and leave it blank? It won't show up on your profile then, it'll be the most neutral way to do it.
That's what I did actually.
I deleted all info - in fact my picture is gone replaced with a black box. No biggie - I have like 2 people on FB I "friended" years ago before I knew I had no concept of what to use FB for or why. I had to tell them to email me if they want a response after I saw somebody asked me something - 6 months after the fact!
Anyway, I just took away everything - why give away details? I even tried to kill off my B-day, but FB doesn't let you remove some things. Can't remember if I finally did it or not, but oh well.
I'm still ticked the W never friended me - even when she had her "I love my H" on her statement or whatever it was. Makes me think she's always been leading a double life, no? Anyway, I use linkedin because it at least serves some sort of purpose.
Me: 58 Her: 59 Kids: 0 Dog: 1 ILYBINILWY: 9/15 D Bomb: 1/11/16 (found out filed) Verified OM: 1/11/16 Moved out: 1/11/16 (thought it was temporary)