something similar happened to me when I first started vaping, I wasn't really committed to quitting or even planning on it. picked up my first kit from a local cig shop because I thought they were cool, within a few days I found myself reaching for it over my cigs and just stopped buying new packs. Honestly I feel like psychologically its much easier to not put the pressure on yourself to quit and just let naturally take over. on the other hand im pretty sure im actually more addicted to nicotine now that I can just puff on my cig whenever I feel like it lol.