(hes my fp, and he knows, for reference)

he said he's looked into it but he says he doesn't understand it, and i always get mad when he wants me to explain it, it makes me feel like he doesn't actually look into it and only wants a summery, i know that's not the case but i can't make myself believe it, i want to make him understand how it makes me act and react and how my emotions are and i don't like getting angry at him, i have adhd and i'm under stimulated and spark arguments, and my explosive anger doesn't make it better, we always brush the arguments under the rug because we can change the conversation so fast

is there anyway to feel like he won't take advantage of me if i explain it and become vulnerable? (i have a past with being taken advantage of)

P.S sorry if i put the wrong flair, its more seeking advice but it's also relationships so i don't know, also i will read the replies but i probably won't respond, i get nervous lol and i appreciate the help