I certainly wouldn't fancy a fortnight with them but I wouldn't end the friendship. Just keep it light touch for lunch or coffees? It's nice to have a change of company . We only ever go away for a week and we've been married 40 years ! At home you can give people space . If they keep droning on too much suggest a film or a nice walk so you've got some interest outside of the droning ! If one is going on and on too much ask the other one a clear question to change the subject towards your interests .Good luck with that !
Being asked for an honest opinion



