The second reading which you chose for your wedding contains Paul s description of Christian loving. Love is always patient and kind. It is never jealous, etc. A couple does not begin marriage with this perfect love. The couple grows in loving and grows by loving.
Love is hard work.
Sometimes love will mean you will have to suffer, if not the love is a disguised form of selfishness. But just as the Church is strengthened through suffering, your relationship will grow in the valleys. There is more growth in the valleys than on the mountain-tops. Marriage Instituted by God Marriage is too big a commitment to leave it only in your own human hands. That is why in the first reading which you chose you heard that it was God who instituted marriage in Eden.