My boyfriend just quit nicotine! He was a heavy smoker since he was 16, then switched to vaping a couple of years ago. He’s quit smoking a few times (ranging from a few months to a few years). He quit again recently, on Christmas Eve actually! He’s had little-to-no side effects/withdrawals from quitting vape, whereas his side effects/withdrawals from cigarettes were way worse. I think it’s great you and your boyfriend are tackling it together, it’ll make it easier having someone to relate to! Instead of smoking when you get that craving, try chewing a piece of gum or eating a mint!