Hi OP,
Didn’t want to read and run.
I’m so sorry you’re having a difficult time. It reads to me like there are two separate (though connected) problems here: your baby’s sleep, and the lack of support you are getting from your OH.
Your baby might be going through the 4 month sleep regression a bit early, or a development leap, or just being a baby and being annoyingly inconsistent with sleep. It’s so horrible and frustrating when they are tired and they just won’t go down. As the PP said, if the problem is flailing arms, have you tried swaddling? In terms of settling more generally, do you use white noise? Are you struggling with just bedtime or are daytime naps an issue too? Overtired babies are so difficult to get down so if naps are an issue, I would say do whatever you can to get your baby down in the day eg go for a walk and get him down in the prom if needs be.
Don’t forget, if you are getting really frustrated, the safest thing for you and your baby can sometimes be to just put him down, let him cry and give yourself 10 minutes.
Do you have anyone who can come and give you a bit of a break or some respite during the day at all?
In terms of your husband, has he always been like this or is this only since your baby has been born? Have you spoken to him about how he’s behaving and how it is making you feel?
In terms of bottle feeds, at three months, your baby has established BFing fine and using a bottle shouldn’t cause any issues (I gave my bottle a bottle at 4 weeks and am still BFing fine at nearly 7 months). In fact, the longer you leave introducing the bottle, the more you risk the baby rejecting it at only wanting boob.
I really hope things improve for you. With babies and sleep, everything is a phase (good and bad!) Just remember this too shall pass. I think the issues with your husband are more pressing and really need tackling ASAP. Xx