Eastsidehelp: It's not clear from your post whether you also have an alcohol or other addiction or whether the problem is your companion's or both. It's not running away to take a breather, separate for awhile and go to Alanon meetings and look at the Friends and Families forum on this website as IOAA2 suggests. You may not either of you get well if you try to hang together. An interesting movie to watch is "When A Man Loves a Woman". All about codependency. Good luck.
W.