@passmethecrisps
Completely GUBBED my DH's phone.
Never heard that word before (GUBBED) and I love it. (Had to google it - it's Scottish! But you knew that :D ) 
Where I come from, we'd say BOST. (Black country.) 
Re the OP.
Disrespectful because we agreed dinner at 6.30, then an hour later at 7.30 you were “going to the shops”, an hour after that DP called to see where you were & no answer... because apparently you were “napping” - whilst at the shops? It’s just a lame excuse and a poor way to treat friends. Please do make it up to DP.
Yep THIS ^ response from @nosquirrels is fab!
And heyyyyy.... I also wonder if the 'just at the shop' text was meant for their 'better offer...'
TBH I am all for giving people a second chance, and if they came to me tail between their legs, saying they were so sorry, and they fucked up and they had been terrible friends, and please forgive us and so on, I would, straight up, give them another chance.
But after the obnoxious 'why have we been disrespectful' bollocks, and the shit way they have been behaving, I would say 'fuck em.