talk about it communication is the ultimate factor in a relationship you need to talk to him about the way you feel honestly. no hiding the truth tell him straight up and if he doesnt try to change then hes obviously not right for you.
it sounds like your not spending enough proper time together, yes you live together but when was the last time you went out and did something together just the two of you that you enjoyed?
its easter, two weeks together, if its not too late then perhaps you could go away somewhere together or at least spend the time constructively together as a couple. try to get the spark back in your relationship. think about the things you used to do etc and bring it back.
if it doesnt work out then perhaps the relationship isnt right for the both of you. you may like him a lot but is that because you have grown used to living with him and the thought of being on your own is too much for you. and do you really love him, is he worth all the effort?