I only wish I had PDT there to coach me when I was @ the 6 month mark with my H going back & forth with OW & me.
He broke it off (rather he said he did, & you know how much value to place on an addict's word) at least 3 times w/OW, only to tell me a day, a week, & once 20 minutes later, that he changed his mind & wanted to go back to her.
Your friends mean well, & I've been told the same thing by some of mine, trust all here that it's not just a matter of opinion, R talks don't work. Everytime you tell him you love him it drives him away, everytime he see's tears, it drives him away.
I heard "I just don't know" so many times I can't keep count. I don't hear that anymore since I've taken Puppy's account of how it affects the R when you put yourself under their control.
The more you fight him & try to convince him what he's giving up, the more he's going to try & prove you wrong.
What will change the dynamic's is when you stop texting, e-mailing, talking about the R, do a complete turn around & stick to it. Try it and see how fast it changes.