That sounds like a greeting to me. "I want to be near you."

With upwards of 3 talky Meezers here, I have to get used to deciphering many sounds.

Snowy has SO many different chirps, trills, calls, whines, and outright strange sounds all by himself.
Noteworthy are the: Mag-gow....... (I want out on the patio)
and the: high pitch Ummm..... I'm going to sleep between your heads now.
He also has an alarm cry, it really will get your attention. But, he uses it when he has found his purple toy, and is carrying it in his mouth.

Bella has a greeting cry: OOOH....... (pronounced as in the French word for water, eau.) I say it back to her and she gets crazy affectionate.

Malfi has a sound, it may be part senility cry, as in I'm not sure who you are, until I smell you.
It goes: A- Wow.......

Nocci, my foster, makes a whooping sound a few times a day for about a minute.

I LOVE talky cats.