Different people prefer different types of relationships. Some people may more thoroughly enjoy being in affectionate company, while others may prefer their space and time. Still, no matter the type of relationship you want and are a part of, all people do need a certain degree of affection, even if that happens only after having sex.
If your relationship was affectionate, but things started to die off after some time passed, that could mean that you need to spend some time away from your partner, in order to try to reignite the flame. Just try to be more subtle about this, for example, don't become unavailable for two weeks. Just try to have two dates per week, if you tried to have three until now. You can decrease other types of social visits as well.