Everybody has their own love language. One thing I did was learn about my current boyfriend's love language so I can make sure im showing him the type of love he needs.
Loving somebody is thinking about what you can do to make sure they're always happy and feeling loved by you. You have to support them.
If you really love them, their needs will never be a burden to you. It shouldn't be difficult for you to show someone your efforts of making sure they are loved.