Boyfriend asked me what time the nail shop closes?? please read!

We always talk on the phone before he goes to work and this morning out of nowhere he asked me what time the nail shop closes on a Friday??? I said why and he was like it was just a random question. But I don't get my nails done soooo..... ?? I then asked him who is he taking to get their nails done and he was like nobody and whatever whatever. Am I overthinking this?? I just feel so suspicious now because what kind of "random" question is that?