Hi there. I haven't faced this problem with feeds but twice now, during the wonder week leaps at 4 months and now again, it has become a struggle for me to get DD down for naps, whereas it is a breeze for DH (dear husband). This behaviour also started just after I let DH put DD down for all 3 naps for 3 days. Despite the fact that I had been doing that for the past 4 months, it just took 3 days to mess everything up. I wonder if it is because she felt abandoned by me? Maybe that is too strong a word. But I suppose she was thrown for a loop when she kept getting dad instead of mom. Perhaps the same with your DS? Has your DH been doing all the feeds/sleeps?
I think that you should just keep at it..give him lots of one-on-one time with you, tons of cuddles & kisses and persevere in putting him down. That is what worked for me last time. I also had to completely re-work the way I put her down for naps. Where we previously used to do the same wind down routine, I now had to start a new one of my own, and that is what eventually got things back to normal. It wasn't any big changes, just a different sleepy song, going into a super bright room & closing the curtains together, rather than into an already darkened room. Small little tweaks of this sort helped.
Just know that however awful it seems, he does not hate you. You are his whole world. He is simply going through a phase, and however hurtful it may seem to us, we can only guess at what he is trying to communicate to us. I hope that things improve for you.
Hugs
