Sydney Sweeney Parties in Ibiza, Fiancé Laying Low Behind the Scenes

Sydney Sweeney seems to be living her best life this summer — but the question still kinda remains after this latest development … is she living her best *single* life???

The actress posted a massive photo dump that shows her partying and enjoying herself during a recent trip to Ibiza — where she’s seen hanging out with friends and hitting the town … be it in formal-wear, or in a bikini. Indeed, she was rockin’ all sorts of looks.

Take a peek at the pics yourself … Sydney’s cheesin’ from ear to ear just about every one of them, documenting everything she did — whether it was poolside loungin, boat-ride sightseeing, surfing or dancing the night away at a concert. SS did all of it and then some.

Obviously, nothing wrong with any of this on its face — but what becomes evident quite quickly is that her fiancé, Jonathan Davino, is nowhere to be found in the festivities. There is one guy featured who has a passing resemblance to Jon, but it’s another dude altogether.

In fact, in some of these shots … it looks like her engagement ring is also missing — but that could be explained by the setting some of these pictures were taken in … including at the pool, where one might presumably ditch such hardware to take a dip.

Point is … it’s interesting that JD is absent from this trip, but not necessarily a smoking gun of her relationship status. Sydney was spotted out on a date night with Jonathan just a few weeks ago in NYC — where they seemed to be in good spirits and going strong.

She and Jon have actually surfaced a few times over the past several months — this amid speculation something was going on between her and costar Glen Powell … whom she shot a movie with, and who looked cozy next to her during a Spring promotional tour.