Itís not what your boyfriend says but does that should serve as the true testament of his love for you or lack thereof. <<<<
lack thereof - not enough love for you in your relationship
I would refer to the definition of "thereof". If we say something is "lacking" then it means that it is not sufficient in some way. This could have to do with quantity or quality.
Right now heís taking you for granted <<
If we take something for granted, we don't really appreciate it or understand its true value. For example, water is something many people take for granted.
Here's another way of looking at "take for granted". If we take something for granted, we could assume or believe that it will always exist.