Showing relationship on facebook?

This might seem really childish but I've just noticed that on my boyfriends facebook page it doesn't show the 'in a relationship' bit at the side with the where he's from etc.

We been together and on facebook for over 4 years (both 24) and its there if you go into his about section. But he's taken it off his main page?

Neither of us are huge facebook users and it could of been like this for years but he must of purposely taken it off right? At some point. And now when anyone first checks out his page there is no sign of his relationship at all.

We have had rough patches in the past when I guess he could have done it. But I want to ask him to put it back on. But since we don't use facebook much im worried itll seem like a needy request. Like he might have completely forgotten.

I just want people to know he's with me? Like my page is full of photos of us and says it in the side bar. On his theres no sign of me unless you dig deeper.

Is it appropriate for me to ask? I feel childish but I also feel a little disrespected.

Update: I think I'm only noticing it now because he recently had a girl sending him desperate messages and he let the attention get the better of him and flirted back. I just feel like maybe if I was more visible she might not have tried it on? But I'm probably just overthinking it. It's never been an issue before.