Latemates - This man does not have the ability to put his child's needs above his own yet if he is saying he can have the baby every other weekend and does not realise what is involved in breastfeeding. He clearly has no clue about young babies. But like every parent he can and will need to learn. Sure he has the ability to be a parent, but I doubt many parents would hand their newborn over to someone who is a stranger to their baby and let them get on with it without any help or advice - let alone for a few hours or over a weekend!
Hence why I suggested some reading material and for him to start having conversations with actual mothers who can give him some insight into teh realities and also what OP will be feeling and what he can expect rather than what he should dictate. And also why i suggested daily contact, and twice a day, if at all possible to try and build up a significant relationship quickly. At the end of the day it comes down to communication and understanding between these two people and putting their own wants and feelings aside for the sake of their baby.
So while he may want every other weekend, at the end of the day if he can't squeeze time in every day because he is busy with his job (which the implication of every other weekend with a newborn implies), and if OP starts to feel unable to deal with the frequency because her emotions and hormones and the inevitable lack of sleep, which will all be relevant in the early days will become a factor, then baby won't get to know dad in the same way they would with a parent who is there before and after work every day. Every other weekend will become a reality much faster if he invests the time and effort required into being a parent to his child. But you do also need to consider that OP may not find it easy to cope with frequent contact with her ex, hence my asking how things are between them now. It is relelvant in advising on how to ensure baby gets to have a relationship with both of them
My suggestion was the nearest to the usualy situation of dad being home twice a day (before and after work) while taking into account that they are separated and that baby will unlikely be awake for more than an hour at a time in the early weeks either and he can't expect to sit around at his ex's house while she is tired and emotional and more than likely unwilling to let her guard down around him.
Almost everyone can breastfeed - whether they believe it or not. Very few people have no milk whatsoever. The obstacles put in their way (by others and by themselves) is what stops mums imo. You are already finding excuses as to why breastfeeding isn't so important. Well to a breastfed baby it is very important.
Being given the occassional bottle, for whatever reason, can have a massive impact on the success of BP. OP needs to know that it's not as simple as giving baby a bottle for dad's benefit so he can have contact and will need her arguments as to why it is not best for her baby, because some people just won't accept it.
She and her ex, also need to be aware that a BP baby will likely feed for an hour and that will need feeding again within 3 hours. That's not 3 hours from when the feed ends! So it could be as little as 2 hours between feeds. So an hour is a lot to expect for dad to have contact between feeds and while baby is actually awake iyswim.
OP you sound very reasonable and I hope things work out well between you all. I do get the impression you are harbouring some feelings towards your ex and that perhaps you are hoping he will come round at some point and you'll get back together? When you say you get on better than some couples that scream at each other... Are you thinking he will see this at some point and hoping you'll be a family (together) at some point? I ask because things can come crashing down very rapidly when you realise that you are in this alone, that he's not going to get back with you, and it's not always easy to be quite so reasonable when you are tired, emotinal and on your own with a baby.
Have you been in touch with his mum yourself? Hopefully you can have a good relationship with her and get support too. Is your family close by? How much support do you have that is for you, not linked to him?