Paris and Josh -- Hender-Done?

Josh Henderson was out last night -- alone -- and he didn't seem to know where supposed girlfriend Paris Hilton was -- nor did he seem to care!

Pulling up to the "Desperate Housewives" wrap party, Henderson was asked about Paris and he replied, "Haven't talked to her" -- not exactly the kind of response you'd expect from a lovebird. Later, when a photog asked about Paris' big day scheduled for court today, all Josh would say was, "She's a sweetheart... She'll be all right" -- again, not exactly a declaration of love and support for the car-challenged GF.

Meanwhile, last night, Paris -- playing mute for the first time in as long as we can remember, not unlike the pursed-lip Debbie Harry -- had no response when asked about her court date. She was leaving her house -- sans Josh -- and had nothing to say about either.

A message left with Paris' rep wasn't immediately returned.