We often get more busy in fighting love than enjoying it while it is there for us . It happens because in many painful ways we believe ourselves to be unlovable, and when and if we find love, we often can't believe it. We test it, treat it with scorn and refuse to enjoy it , or it can be said that we don't know how to enjoy it.
We resort to wounded sulks, and jealousy becomes a defensive manoeuvre. We tend to focus more on the external threat, rather than working with our internal difficulty of trusting the other person.