Should I be worried that he left his boxers and socks for me to wash for him to collect next weekend?

I wouldn't say it's something that should "worry" you, but I'd definitely consider this a red flag. Especially if there was no prior understanding/agreement between the two of you about who does laundry for whom, and when. Most definitely something you should talk to him about.

No matter what kind of relationship you have, YOU have to define your own boundaries, and demand that people respect those. You may like/love him, but that's no reason to let anyone walk all over you ... EVER.

It depends on who “he is.” Your lover, your son, the plumber?

I don't think leaving dirty underwear is such a good way to impress chicks

Nah he just left them as a test a heart warming gesture to see if you will wear them to see if your interested 🤫 got to say I wouldn't of done such deeds I would of left my wallet (no credit card through) just to see if your a good lass who would go out your way to give it back.....not that I do such things but hey I'm just trying to understand why someone would leave items such as that 😉

A full load of washing, then perhaps worry. A couple of items, nah.

Do you take it as reassurance that he's not going to dump you, or as a threat that you're never getting rid of him,?

Man child springs to mind. Being completely honest

I wouldn't be worried.....

But I definitely would be kinda grossed out if "a dating partner" left previously worn underwear for me "to wash".....

EWW...

do you feel it was intentional? if it was, thats ...weird.

He'll be putting a ring on you next

Yes, it’s not cool to expect wife-y-mom sh!t in a situationship. Unless you don't mind being guys’ mothers while you date them, it’s a red flag.

Nah I think that’s kinda cute

Seriously he’s trying to tell you sumfin and goofing around 💗

Id toss them in the trash. To me thats plain ignorant. Id leave mine with him next period time and say wash these