Hi, i’m 17f and i have a friend who’s 19m and has bpd. We’ve been friends since August 2020 and we tried a relationship but it failed so we’ve been friends since october 2020. He treated me quite badly afterwards for a long time and he blocked me june this year but last month he texted me and apologised for everything and explained he was diagnosed with bpd a few months ago. 

since he apologised and we got back friends we’ve been facetiming a lot and we would speak about our relationship on facetime at night and once we even fell asleep on facetime together, but he is in a relationship rn himself. since then i stopped talking to him about relationships and stuff because i wanted to do the right thing. 

he does this thing where he’ll really want to speak to me for a few weeks and then he’ll stop responding and be rude to me and i become sick of it and distance myself and he’ll come back to me again and it just goes round and round. 

last thursday i messaged him asking if he was free friday or saturday night so we could talk and it got to evening the next day and he still hasn’t replied so i sent a long and polite message explaining how it upsets me when he does this and he still hasn’t replied to that either. 

any advice ? i don’t know what i’ve done wrong.