Everyone loves to be shown and told about how much they are loved.
There's a very special feeling that comes with getting sweet and loving messages from someone who is very important to you. This communicates their love for you and helps to build your relationship to a stronger level.
It will surely also send happiness to your boyfriend if you decide to renew your love for him every morning by sending sweet love messages and good wishes. Sure, this is one among the many ways to keep your relationship alive.