Is this normal? is he a jerk or am i?

i was dating a guy for three months.. he was very into me, (called me day after meeting, asked for date next day,etc..) the few time we hung out i was my normal sweet self.. but i found out that my favorit closest aunt was terminally ill so i shut down. i never told him what was wrong, but i guess he stayed around hoping i'd be how i was before. eventually he said he couldn't take me treating him like that anymore and broke up with me.. i didn't call him for a few weeks, but then my aunt died and i sent him an email explaining i was acting weird bc my aunt was sick. he didn't respond right away so i flipped out and bombarded him w/text messages.. he never ever did respond. a girlfriend of mine asked him what was his deal and he said i was annoying the heck out of him with my bs. i know for a fact that he doesn't have another girlfriend, so he honestly was tired of me being rude/cold. so why when i reached out he didn't believe me/respond? is he a jerk? i just wonder