I can relate to feeling like "the fifth wheel."

But then I realized that the grass is always greener on the other side. Couples may look happy on the outside but they may not be behind closed doors. A woman stuck in a bad relationship may be jealous of a single woman for the "freedom" that she has.

A lot of times people jump into relationships without being ready. You can use your single days to prepare yourself for a healthy relationship: Read self-help books, Internet articles (great ones on PC!), etc.

I like your idea of engaging in a creative hobby. I also think engaging in philanthropy would be fulfilling.