Love yourself before you become the love for another. The key is in understanding that you are love. When you treat love as an entity that you provide for another, you become removed from it and keep a distance from it.
As a human, your prarabdha, your divine destiny, is love. You are a being of love. When you have love as something that is removed from you, you distance yourself from that which you were born into.
It takes some work and your focus and attention deviates from that which is your highest good. The love you provide another or others is incomplete and can sometimes leave you incomplete and drained.
When you step into that which you are and be the love you seek or give, and give it all to you, you become an eternal fountain of love that can be shared generously. You activate the ongoing replenishment of this eternal fountain of you that is love.