So what is unconditional love?
Unconditional love is the type of love that comes without conditions. It is the type of love that you have for your partner when the romantic, hollywood-style love is gone. Once the romantic love is gone you make the transition to "real" love.
Real love is love you have for your partner despite the knowledge that they are not perfect. You know your partner has faults. You know your partner is not perfect. You know your partner makes mistakes sometimes, but that’s okay. You still love them. This is unconditional love.
Have a think about unconditional love and how you can apply this realization to your relationship.