Lateness...I dont want to argue over this but...

[buspildo]

Am meant to be going somewhere at 12 today. Actually supposed to be there at 12.

Bf was meant to be coming with me. I phoned him at 11 as he requested to make sure he was up and give him time to get to me (it's 10 mins to mine and them 15 tp where we're going). He has health issues and insomnia so I tend to cut him a bit of slack.

At 12 I messaged the seller and said we'd be 10-15 mins late as he wasn't at mime then bit I thought he was on his way.

I called him and he'd fallen asleep again. He's still not here.

I have no idea what to say to seller, when he will actually get here, he said asap, or what I should say. I am feeling quite annoyed and resentful.

To be fair, if I’m selling something and someone is late it doesn’t bother me if they are in contact. I cannot bear those who don’t turn up and you wait for them. That puts me off selling. Life happens and being late is often not intentional.
Op I’d suggest with his issues you make plans for later in the day. On a weekend lots of people don’t like moving before lunchtime. You are right to be irritated but some people are just like this for whatever reason. I have a family member who’s lovely and helpful when they are awake and together, but in the mornings they are useless.
And don’t kid yourself about weed. It’s very strong these days and ‘medicinal’ or not it creates lethargy and a ‘can’t be arsed’ attitude to life.

Seller was ok about it, so bf said 'well clearly it doesn't matter' and that I'm BU to have been annoyed!

But his lateness didn't affect only the seller, it was a frustration for you - doesn't that matter to him? Because if he is unconcerned about messing you around, then.. well...

Seller could hardly put you off by reprimanding potential customer though?!

I hate lateness too. It is so stressful. Such unnecessary stress. I couldn't be in a relationship with somebody who was always casual about being late. There are worse faults but it is just so frustrating and unnecessary.

So he works with cars and habitually, daily, drives under the influence of illegal drugs??

I’d report him AND dump him!!

He’s putting everyone on the road and pavements at risk. He has no right to do that.

Tell him to grow up. No way would I consider dealing with that the rest of my life.