The damage is done. Time may help but I wouldn't even approach them again. They sound like losers anyway, really.
In the future they may want to talk again, if so, cool. If not, cool. That's how I'd react to this situation.
Now, if they gossip to mutual friends of the asshole things you said, oh well. As I said the damage is done. You'll just to have to admit to saying it.
You shouldn't have tried to cover it up.
[–] 12013684? ago
I remember messaging a friend one night -
'Man I've been fucking sitting out here for an hour, I swear if he doesn't show up in the next 5 minutes I'm gonna fucking kill him'
Two minutes later other mate comes out of the house with a quarter of weed and leaves straight away. Other mate hasn't replied. Because I'd apparently not hit 'hey dude where are you' and replied to 'yeah bro come around I'll be out in a few minutes'
Suffice to say that was the last time I bought weed from that dude....