I don't know what to do anymore!!!

Me and my boyfriend have been together for going on two years, and just like every relationship it goes in a circle. Some days we are in complete bliss and others, well  let just say are more the "ugly". Recently I have noticed that he isn't as affectionate as he use to be and me being hurts many times I feel that I need and explanation so I asked and his reply was "it's because I'm use to you so their really isn't a point in to sound lol that stuff" and like the insecure person I am ( because I been hurt from pervious relationship) I stormed off to the bathroom and cried. So after I straighten myself up I asked him what can I do to make myself more attractive to you, his response was we can have an open relationship cause I'm bored being with you😢