my boyfriend never really liked me

we broke up after ~2.5 months of dating. i KNOW thats not a long time, but it honestly felt much longer than that.

we had a talk where we both kinda went in knowing that we were gonna break up. he told me he was too busy and could not keep me a priority and he felt bad. but his actions during the relationship said otherwise, and i pointed out to him how i thought he liked the IDEA of a relationship, not me. he thought for a while before he agreed.

he told me he really liked me in the beginning, but i think thats because this was his first relationship, i showed him a lot of attention, and once again he was really into the idea of a relationship with me at the time. once he really started to get to know me in the relationship was when this novelty started wearing off and he realized he didnt really like me that much, and i felt it too.

i felt so stressed during the short duration of the relationship but he also took care of me so so well. i know he cared for me but he never truly liked me as much as i liked him. im regretful that i was so emotionally invested in a relationship that was harmful to me, i miss him, and my self esteem took a huge hit. i dont know what to do.