The plans that you have to go places can be kept whether he goes or not. Like you said you and the boys can go to the beach, as far as the concert if he doesn't want to go, ask a friend.
Hell, we still take "family" trips and my H has been gone over a year. Don't do them often, but went away at Christmas and are going again this summer. If he decides not to come, we'll go anyway.
It's nice that he can still say he loves you. Whether or not you believe it, I'm of the mind he probably means it, at least in the moment it's said. Does that mean all will be healed? That remains to be seen. That he can acknowldge feelings for you, in my world that's a good thing. Just don't go counting your boobies before they're hatched.