It just goes to show where your H's mind is at, solely on himself. I agree with the others that your H is placating his guilty feelings for leaving you by playing nice. I would suspect he's trying to fly under the radar hoping for a favorable divorce settlement from you. I think he knows if he dangles the carrot (a bike ride, giving you mints as a nice gesture etc), you will melt and then he can manipulate you. Be careful.
My ex did the same thing. At first she demonized me and made me out to be the devil, she literally blamed me for everything. Then she started acting nice and talking with her sweet voice and asked me if I would give her 3k so she could get her own place and be ok financially (please note I paid for all expenses while we were together except for groceries) when she moved out. When I told her I would not be giving her 3k to leave me (it's crazy even typing that out that dumped me yet again and then asked me for money), she immediately went back to being horrible. I haven't spoken to her since that day.
You simply cannot believe a word out of your H's mouth, even when the words are kind in nature.