forgive me for trawling back through the dating thread archives again but i think context is needed here.
you posted about this guy when you first got together. like you say, he lied to you (quite significantly) about his age. he also didn’t tell you, you found out the truth from a mutual friend and, when confronted, i think his defence was that you would never have dated him at his real age. we talked then that this was slightly dodgy behaviour and, like you say, a red flag.
we also said here that, if you did choose to carry on a relationship with this guy, that there would invariably always be trust issues because he lied to you, in a major way, when you first got together. i recall that you posted a few times afterwards about worries you had about a guy you were seeing, but didn’t clarify if it was the same person. i see now that it was.
ultimately there COULD be an easy explanation for the condom wrapper. but this man has previous for lying and you understandably have insecurities about that as anyone would. do you truly believe him? or is this not really about the condom wrapper at all, or about you facing his initial lie? have you truly accepted that (because, like i said to you at the time, i absolutely wouldn’t have)?