Although you want to hear from him more, it isn’t unusual that he communicates less in a relationship with you.
Unlike women, guys aren’t as stimulated by communication, especially when it is constant throughout the day.
It’s vital you realize that he isn’t one of your girlfriends.
It’s natural for you to go back and forth, communicating with your closest girlfriends throughout the day, but you mustn’t think the same of a boyfriend.
You left it to him to keep the relationship fun and exciting.
Now that he is comfortable in his relationship with you, he isn’t putting out anywhere near the same amount of effort to show you a good time as he did in the early months of the relationship.