"Do you think it's possible to be single and happy"
I understand why people want a relationship. It's hard being alone and having to do everything on your own, however, it's not impossible, and I truly believe the only person you can rely on 100% is yourself. Sometimes, being in a relationship and relying on another person can lead to disappointments. When you expect someone to pull their own weight in a relationship and they don't ... then you start to miss the single life.
It is important to have autonomy. And I'd rather have that than be in a co-dependent relationship.