Just want to give up

Seriously so close to giving up on my marriage I just feel so alone evary single day we don't even sit in the same room as each other anymore he doesn't come to bed with me we don't have sex then when we do I always feel bad because he's struggling with pain at the moment he's been for all different tests but we have no idea what the pain is he dosnt touch or kiss me unless I kiss him first he dosnt tell me he loves me unless I say it first most of the time he just moans at me for not doing this and not doing that I don't think he actually loves me anymore and it's braking my heart I've tried speaking to him about it on multiple occasions and I know I am not exactly perfect ither I just feel like after 18 years he's finally fell out of love with me 😪