One woman’s trash is another woman’s treasure … and, possibly, soon-to-be fiance.

Hailey Baldwin has been enjoying Selena’s sloppy seconds in the form of Justin Bieber, but it’s not the first time that Hailey’s dated the Biebs.

A report says that, this time, Hailey is playing for keeps — and wants Justin to put a ring on it.

So, Justin and Hailey are back together. But it looks like this is already no casual fling between old flames.

RadarOnline reports that Hailey Baldwin is eager for Justin Bieber to propose.

“Hailey has always been crazy about Justin,” the source explains.

Well, so were a lot of people. Even though some fans think Justin’s basically ugly now given that he’s covered his body in tattoos.

But Justin and Hailey have dated before, and the insider says that “they stayed friends after ending their romance.”

That’s not so unusual.

The source says that this friendship was great, “but it’s no secret that she was hoping it would turn into something more again.”

Former lovers can be hard to leg go.

Now that they’re back together, the source says, “she’s finally got what she wanted.”

Some of that infamous Bieber wang! Also the rest of him and, like, his affections.

“And now that they’re together,” the insider continues. “[She] wants to make things official.”

Not just by announcing their relationship — though fans have seen proof that they’re back together — but with an engagement.

And the source says that Hailey hopes that Justin will pop the question “as soon as possible.”

Wow … isn’t that rushing it a bit?

“They already know each other so well and have a great connection,” the source explains.

They already know that they’e compatible, the insider spells out, “so Hailey wants this to move fast.”

The source even characterizes Hailey as “begging” the Biebs for a ring, though that sounds a little like exaggeration, right?

“She would love to marry Justin,” the insider dishes. “And hopes that he’s ready to take that step with her.”

And she’s reportedly not afraid to give Justin a nudge in that direction.

The source says: “Hailey is dropping plenty of hints that she’s eager to settle down.”

Whenever anyone is dropping hints, we think of the infamous dropping hints meme that Kim Kardashian spawned.

Don’t worry. Hailey is eager, the insider says, “but she’s also being careful not to push him away.”

That sounds smart.

“The last thing she wants,” the source explains. “Is to lose him again.”

We cannot confirm any parts of this report, and want to make that clear.

Hailey Baldwin, we would hope, would have the sense to make sure that she and Justin are still romantically compatible before pushing for an engagement.

It’s true that sometimes people just know and get married right away and have long, healthy relationships. But she and Justin have done this dance before and then parted ways.

There is a tendency for the human mind to romanticize the past. Your old apartment, your old job, your former lover, your former grocery store — whatever it may be.

After a few days or a few weeks or a few months, however, you start to remember why you moved on.

It’s usually a good idea to not rush into things with an ex whom you’ve spent years romanticizing.

That said, Hailey is a grown-ass adult and she can get engaged to the Biebs if she wants to.

But … would he feel the same?

He may still believe that God wants him to marry Selena Gomez.

It’s kind of difficult to argue with someone who believes that their romantic destiny is divinely ordained.

Let’s just see how things go for these two.