Relationship struggles

why didn’t anyone ever say relationships are so hard? i’ve been with my boyfriend for 7 months & it’s just a total roller coaster. i love him to death but sometimes i can’t handle it. we spent the day together & im on my period so i had really bad cramps & wanted to go home. he was just falling asleep & got mad when i woke him up to drive me home. before that i was complaining about my pain & he was just scrolling through netflix. after he dropped me off, i didn’t call him or anything & after an hour he called me & when i answered he just looked at me & hung up. i called him a few times got no response now he blocked my number. i just don’t know anymore & i have no girl friends to talk to about how i’m feeling.