Complex sentence: He is also bestfriends with Jackie's ex boyfriend (and later husband) BJ, although they've been in bad terms, in the end they (Budoy and BJ) reconciled each other and finally accepted BJ to propose Jackie during his birthday.
Split into simpler sentences: He is also bestfriends with Jackie's ex-boyfriend (and later husband) BJ, although they have been in bad terms. In the end, they (Budoy and BJ) reconciled each other and finally accepted BJ to propose Jackie during his birthday.