Season 1 is pretty funny but I frankly don't know you need to see it first lol. But both seasons are only 6 episodes and like half hour episodes so they're pretty easy to breeze through. Fleabag is a pretty ... complex/difficult person in the first season but season two is a huge growing point for her. He's only in season two and he's just yeah adorable lovely lol. They're always so witty too like
Her: "Do you think I should be catholic?" Him: "No, definitely not, I like that you believe in a meaningless existence. You make me question my faith." Her: "And?" Him: "And I've never felt closer to God." Her: "Fuck you."