Lots of good advice to you! But, how old is your H?
He sounds confused, and maybe feels he can't trust you. They always forget that they did something wrong.
Actually there are many positive steps here, you are just like the rest of us; we want it yesterday! LOL
Learn to have patience and learn to "wait this out". He is coming towards you step by step.
As for the , as long as it doesn't totally turn you off, go for it, everyone needs a little spice in there lives.
Why doesn't he commit to coming home? The same reason all of them don't, guilty feelings, wondering if it will work, if you can forgive. I agree, don't pursue, let him lead. Don't answer every call, do a 180. It's about rebuilding a new R not trying to fix the old one. So build a friendship, work on you, and give your H space. Don't press him to come home, let it be when he is ready!
They ALL cry wolf (divorce) it is not what they really mean. My H thought we should D and when it came down to it, he didn't counter file!
I see MANY good things here! How is your communication? ASk for what you want and don't beat the bush to death. Maybe a date, a picnic tell him lets be friends.
This didn't happen overnight, so don't expect things to be fixed overnight.
Got the DR book? Get busy reading, over and over! Detach from his drama and stay upbeat and friendly!