Feeling trapped

I'm really struggling with my relationship. My boyfriend and I have been together for four years and lived together for one year.

I would love to say it was a love at first sight fairytale but it wasn't. He was kind, caring and we got on really well but I didn't totally feel that 'spark'. He wasn't my usual 'type' but as my usual type never worked out I gave him a chance when he asked to make it official. We got together, things were good and he made me realise that I was worth something. I care about him more than anyone and would never want to see him hurt.

I just feel like I've always had to force that attraction/spark and it's something I'm finding increasingly difficult. I've often told him that I think we need to talk or take a break as I'm unsure of how I feel but he literally just ignores it and carries on as usual.

We've planned our futures together but I just don't know if I can hold on to this any longer. I don't know what to do anymore