Addict has a negative connotation. People associate it with words such as dangerous, unstable, homeless, and irresponsible. They think of people in rehabs and people on the street. But they do not stop to think about the fact that those addicts have families, too. They have kids, they have parents, and they have husbands and wives that are struggling with their problem just as much as the addict themselves.
The point of the engagement ring in the early twentieth century was that the woman would keep the ring if in fact the couple ever broke up.