Panchita

Don't mention it again, but wait for her to bring it up (she may well forget about it, in which case, don't poke the bear)

Since you've already said to her that you're not sure if you've still got it, if she does remind you I'd respond with 'I'm not sure where it has gone to, but it is the XX pattern designed by XX, I found it XX'

That will be enough for most, but if she continues to ask let the pattern remain 'lost' for as long as is necessary (and don't offer to look for it, that encourages her to expect you to produce it)


As a general thing, if someone asked to borrow a pattern my response would be to tell them the name and designer together with where I got it (or a suggestion like Amazon or Ebay). If pushed, I would then say no I don't lend out my patterns (or whatever). And if pushed further, I'd continue to say no, that I've had bad experiences with lending in the past and that I would like to keep [the person] as a friend. After that, just stand your ground. You don't owe them anything.

Most people aren't that pushy and won't get beyond response one or two. The ones that do keep insisting aren't worth worrying about offending - after all, they aren't bothered about offending you!