I went through this with DS1, now 3. I had some really low points and DH would get really cross with me and tell me I was making it into a big deal when he thought it wasn't.
To be fair to my DH, despite me bf DS for a year, he was/is a really involved Dad, was generally a lot calmer with DS1 than me.
I suspect I also had a touch of PND, I was certainly v. hormonal and found it difficult to cope. Realised how bad I was when I bounced back quicker this time with DS2 (a nightmare reflux baby).
It's really hard for other people to understand how hurtful it is to feel rejected and it turns into a bit of a vicious circle of you being tense and them avoiding you. Am feeling quite sick now remembering the tears and the arguments I had with DH over this.
What makes it harder is that everyone expects a baby to want their mother more, and are really shocked when the baby turns away from mummy to get Daddy. (my experience anyway).
Things came to a head for me when I was TTC n°2. Had several false alerts, then a miscarriage at 10 weeks and after that kind of woke up and decided to concentrate properly on the baby I had (18 mths at the time). I think before that I had kind of written him off and thought, "oh well, I'll bond with the next one better".
Anyway, things kind of shifted for me, and now I am (naughtily, but secretly) gratified when DS1 says "no, I want mummy to do it" like at the moment when he is sick.
Oh yes, and DS2 is a TOTAL mummy's boy, but that would be because formerly angelic DH took off to sleep in the spare room for 6 mths leaving me "holding the [screaming] baby"...
This is a complete essay now, so sorry, hope you know you are not alone and it will pass anyway ! hugs