The best way to love people is to love out of the knowledge, identity and supply of how loved you are by God. Loving others shouldn’t be out of religious self-imposed works just to get right with someone or with God, but it should be a fruit of God’s Spirit because you are hidden in His love and filled abundantly with the Life of His Love.
Loving others should not be a bondage but a liberty - freely given and receive exchange. And the credit of your love should not be on yourself but the One who made it possible, give Him all the glory by allowing Him to supply it all to you.
We stay commited not because of a legalistic bond but because of the Grace that we have to remain lovingly devoted. Relying on marital regulations to remain commited only stirs up the flesh, but commitment under the reliance on Grace, you operate by Grace upon Grace, you can love forever. Loving and serving others should be done out of your rest in His Love and Grace. That way, you will never have to be burnt out by loving others or to love out of obligation.