Hi guys. I'm looking for some relationship advice, so thought I'd try here. I'm a fairly regular poster, so for anonymity, I've opened a new account.
I've been with my boyfriend for over 5 years. I'm 35 and he's 38 and we've no plans to ever have kids or get married (this is a mutual agreement). 18 months ago, I asked if he would consider moving in with me in the future. Big mistake. Without hesitating, he said he would never live with me. I was gobsmacked and was pretty upset by his reply. I asked him why and he said he loves living on his own. Now, this would make sense, but he doesn't live on his own - he lives with his parents (his bedroom is tiny and I hate going round there as there's only room to sit on the bed, making me feel like I'm in a teenage boy's room)! I questioned him about this statement and he said he never saw them. They never leave the house! He also pays no contribution towards the bills and never does any housework. I do wonder if this has something to do with him not leaving...
I've since tried to explain to him how much this upsets me, as this is as far as our relationship will progress. As I said before, I don't want kids or marriage, so this was the next and final step for me. He was adamant this was his stance, so in order not to ruin our relationship, I've never brought it up again. Unfortunately, it plays on my mind all the time. I wish I could ignore it, but it's always there in the back of my mind, torturing me. We have a good relationship and he's really kind to me and has recently helped me through an long illness, so I'm not willing to give it all up for this, but it eats away at me.

Has anyone got any advice for me? Has anyone been in a similar situation? Sorry it's so long...
Edit: He also won't tell me he loves me. I'm pretty certain he does, in the way he acts towards me, but recently, when I asked him if he did, he just told me that he doesn't know what love means. Sigh.