Work on being optimistic about YOU. It remains to be seen whether there is anything to be optimistic about so far as he is concerned.
Optimism is fine, as long as it isn't delusional. And it's very easy to slip into delusion--seeing and believing what we want to see and to believe, rather than what is in front of us.
Small, token gestures don't mean much either. Sooner or later he will come up with a combination of words, and small gestures, that will start to work on your head. You will start thinking maybe he's serious.
When that happens--WAIT. See what happens when he doesn't get what he wants, when he wants it. That's one of the acid tests, I think, for serious recovery. Someone in early recovery, who is serious about it, may get frustrated and angry and self-pitying. But they don't run out and drink. They call their sponsor or someone else, find a way to work through those feelings.
Just my two cents.