my wife meets this other guy at school pick up.they flirt with each other him mainly with her though.this has been going on for a long time,ive seen it on a few occasions too.out of the blue he told her that his wife was going away on a course andto come around for coffee to keep him company.my wife tells me as soon as i get home from work,we  both know he wants to fuck her.i asked her what is she going to do,she said i dont know,should i just go to call his bluff.i said but he will fuck you.she said i dont think he will so i said i think i want him too.dont think she could believe that i said that,but i did want him to fuck her and i did want him to do her regular too,i told her that too.maybe i will go then she said.so what should she do