ALLAH the almighty mentions in the Quran, "And one of His signs is that He has created for you, spouses from amongst yourselves so that you might take comfort in them, and He has placed between you, love and mercy. In this, there is surely evidence (of the truth) for the people who carefully think." (Surah 30, Verse 21).
The very first relation in heaven and on the face of this Earth was a relationship between a man and a woman which was later given a beautiful name "NIKAH"!
ALLAH created Hawa (A.S) through Adam (A.S) rib to become his better half and that they find rest, comfort, love and mercy in each other
Nikah, a relation which is strong and yet fragile. Because unlike every other relationship where you are bound to one another either by blood or by bonds formed over the years, Nikah begins without any of these. A beautiful relation where ALLAH puts love between one another to become each other’s soul mates not just in this world, but also in Jannah if you have righteous spouses.
ALLAH has beautifully made the idea of love or marriage in Islam that doesn't just end when you leave this Duniya, instead, you are re-united in Jannah again to have a beautiful life with your spouse filled with immense love from ALLAH in Jannah with no hurdles or tests.
The best love is when you find someone who makes your Imaan rise, who makes you more pious and who helps you here in the Duniya, because that person wants to meet you again in Jannah.