The Messenger of Allāh ﷺ said:

“Whoever is pleased that he loves Allāh and His Messenger, let him read the Mushaf.”

[Sahīh Al-Jāmi’ 6289]

Reading the Qurān is a cause for one to love Allāh and His Messenger ﷺ. So the more the person reads the Qurān, the greater the love.