I understand perfectly what you're saying and have been at that part of my life and in a relationship where I was content but not really feeling the joy or happiness that I could.

I learned, for me, for relationships anyway, never to settle. If I'm unhappy, and if she's unhappy, we need to open the lines of communication and just be honest and say so.

I shall never trap anyone in the guise of content even if it's..... well.......contentment that they feel because to me, it's not enough. But for some, being content is as good as it gets. For me, I need contentment AND joy to coexist.