my math teacher was discussing an assignment that i had a really hard time with and he was going so fast i couldn't keep up so when after each of his explanations, i was like: sir can you go over that again
and he was like: this is too easy man what's there to explain god get a grip.
and literally he embarrassed me for asking so many times for the next 5 consecutive questions, and people were sighing at my questions or just laughing at how he scolded me so i got all teary eyed and i think that scared him. so then he was all, ok dear here look and then he was really nice about it.
*Use whatever pronoun suits you best
When you take someone for granted for too long, you teach them to live without you. Don't be upset because they're no longer paying you no mind. Be upset at yourself for letting them get away, especially when all they wanted was to be a part of your life.