Loving, maturely, sincerely, like everything important in life, is a faithful practice. You must be there for someone else. Instead of doing what you want, take your time to listen. Teach your mind to be peaceful, let go of going your own way.
If you were used to taking care only of yourself, living the way you want, building your own lifestyle, then train yourself to let go and be open-minded to a different perspective. In time, through honest practice, loving will become you, your desires and actions.
Blooming the flower of love is a process of the mind and must not be rushed. Rushing it only tricks the mind into believing it changed, but in time problems in the relationship will appear because there was never a real shift of your mindset/your subconscious never changed its programming.
-THANKS FOR READING-