Second Guessing.

I guess I want to start by saying I don't doubt that my boyfriend loves me. We've been together two years and we're close to buying our first house but lately it's like he's turning into a different person. He seems to care less about my feelings, doesn't make an effort to help clean or cook despite us both working. I don't get any appreciation for coming home after work and doing dinner, the laundry and cleaning. He doesn't make me feel as special as he used to and we argue so much more. He doesn't seem to care if he upsets me anymore. He'll apologise and grovel and say all the right things but nothing changes and we're back to the same argument a week later. I scared because I've uprooted my life for him. I've moved to be with him, got a job, joint savings and we've been planning our life together. I've always had the higher sex drive but lately he's hardly putting any effort in in that department. I find myself wondering if I can live like this for the rest of my life. I feel underappreciated, undesired and it hurts. I love him but I don't know how to keep going like this. The thought of buying a house together in under a year has me worried because then I'll be tied to him completely. A couple of months ago that was my biggest dream but now it feels like it's turning into a nightmare. I don't know what to do.