Should i just get over him?

my ex-boyfriend has a lot of addiction problems with drugs and alcohol. we have gotten into so many fights and break ups over it, but its our only problem. everything else is perfect. we mesh well, we get along wonderfully. we broke up last night because he used again after a month of sobriety. it is really hard for me to actually care about a guy because i am more of the "free spirit single girl" by nature. but he has made that alll seem sooo...irrelevant and unappealing. now i just want to be with him. i miss him so much and its only been a day. i am reaching a horrible depression, but do i just get over him? or should i reconsider? i might just have to accept him using and compromise instead of trying to change him to being sober