In part one of this series on the wrong reasons for falling in love, we examined five of the worst internal circumstances in which to start a relationship:  love at first sight, rebounding, rebellion, loneliness and obligation.

It's unlikely that anyone would intentionally base a relationship on these types of motivations. But it is extremely easy to unconsciously find yourself moving forward based on solely on these emotions.

In this article we're going to examine some external reasons – what researchers call "deficits" – that can particularly contribute to making poor choices when choosing a mate.

1. Financial advancement is a motivation for some to pursue a relationship. For example, many young divorced parents consider marriage as a solution to the exhaustion and expense of supporting and caring for young children all alone. People may also choose partners in order to advance their careers in certain professions. Whoever the person going into a relationship for economic reasons is not a likely candidate for choosing well, and in fact they may overlook negative traits because of their economic concerns.

2. Sexual attraction or guilt over sexual involvement is often behind one's choices in relationships. However, sex is not a sufficient reason to pursue a relationship or marry, and as a predominant factor seldom leads to lifelong happiness. As with economic concerns, sexual chemistry between two people can often blind them to other important qualities necessary for a successful relationship.

3. Premarital pregnancy is a problematic and all too frequent reason for marriage, even while a growing body of research has consistently demonstrated a connection between marrying for this reason and divorce. There are several reasons for this:  the marriage is forced by outside events instead of internal desire and commitment; raising children is expensive, and financial stress is always difficult on even the strongest couple. On a couple forced into the situation, the stress can be unmanageable; the couple may not even be compatible, and may end up resenting each other for being in a situation in which both feel trapped.