Since both prescriptions were for drugs used to treat Bipolar Disorder,  you might want to start there in your research.  Bipolar can be a serious issue in relationships, since when in the manic phase the sufferer tends to take more risks (financial, sexual, driving) than is prudent, and while in the depressed phase the sufferer can become suicidal.  The mood swings can have a detrimental effect on the relationship.  One word of caution.  Bipolars tend to seek help for depression, and are often prescribed anti-depressants that can cause their cycles to speed up.  Going from manic one day to near suicidal the next is exceedingly disruptive to families.  I wouldn't ignore the issue.