I have exactly the same issue with my dh. (using the term issue lightly as I know it's mostly my issue.)
We have been together for 15 years. He has never been very affectionate, but used to be a little more than he is now. I can count on one hand the times he has said I love you in 15 years.
The little things he did make an effort with, such as holding my hand when we were out together, have been replaced by our dd (now 6) wanting to be in the middle of us. We sometimes insist she will have to pick a side of one of us but usually we let her in the middle.
To him, making me a cup of tea, making dinner or doing the washing up is his way of caring. Whereas to me, those are things you'd do for someone you shared a house with anyway. When friends or family visit, you make them a cup of tea etc, so how is making one for me any different to that. I wouldn't want him not to do those things, but that once in every 4 years I love you really matters to me. I feel like it would make a huge difference to me if it was more frequent. I'm not saying weekly or anything but maybe once a year instead of every 4, or so, would be nice.
If he cleaned the house - now that would be something. Even our dd tells him that would be nice for mummy, including for my birthday last year! but a clean house isn't important to him, so he isn't interested.
I've been finding it particularly difficult recently. My life has changed considerably with debilitating illness over the past few years and I feel I am not even a shadow of the person I was when we got together. (I don't consider it as just my life has changed, I know our life has changed, but when thinking about it, really it doesn't seem as though his has.)
I have tried talking to him. I get concerned he will find having to do more of the household responsibilities wearing and worry he feels taken for granted, but he is so laid back that he just says he is fine. When I have tried talking to him about our relationship and asking
what would make him happy, he says he is happy and has everything he needs. when I talk about me needing more emotional and physical contact, he says he can do those things, but then nothing changes.
Part of me knows it's my fault for thinking I could handle this forever, but then he was a little more affectionate before and I don't think I realised how difficult it would be for me.