barty knows about regulus’ feelings for you. how could he not? he’s never seen his best friend behave this way. regulus was never one for relationships, he refused to get distracted by lustful feelings. he always thought he would graduate from hogwarts and marry whatever girl his mother and father picked out for him. but recently he’s found himself head over heels in love with you.

barty, despite being regulus’ supposed best mate, is quite a cunt most of the time. he often thinks of different ways he can purposefully upset regulus, such as asking his first crush out on a date and getting into a relationship with her…

when regulus saw the two of you sat together under a tree making out, he wanted to kill barty, he wanted to strike his heart with as many unforgivable curses as he possibly could. he’s never felt like the jealous type, he’s his mothers golden boy after all, but when he saw this his jealousy spiked to unimaginable levels.

he spent the next few weeks getting to know you as barty’s girlfriend. you’d sit with him at lunch and it would be wonderful until barty came over and made out with you in front of him. he doesn’t understand your attraction to barty, you have such intelligent conversations with regulus, barty just wants your tongue down his throat.