mixed signals from ex

recently, we broke up due to arguments and he never seemed to have an interest in me anymore. now that we’re broken up, he’s sent me good morning texts, just sent me a “good night❤️” text and whenever there’s contact with me and him he’s flirty for sure but when it comes to our friends, he’s sucked into them. idk what to even think of this. it’s like he’s interested but not interested