Weighted feeding not productive vs bottle feeding

My boy is just working on feedings now! We’re doing a combo of bf and bottle but the weighted feeds are so discouraging. First weighted feed he got 8ml, second nothing, and last night was what I thought was his best, longest, and most aggressive feed yet. He nursed for a solid 20 mins(normally he wears out around 10 mins). I was sooo proud and excited to see how much he got only for him to just get 6ml? He can down a whole bottle(48ml) in less than 10 mins and probably would have had I not insisted on nursing just for him to get nothing. I’m taking it personally for some reason. I pumped right after and got 3.5oz combined (about normal for me) so it’s not like I don’t have the milk! I didn’t feel a let down happen or anything. Maybe that’s the problem? Since that 9pm nursing he also hasn’t cued all night so now I’m blaming myself for wearing him out too. I just want him home but I’m delaying his progress 😭 via /r/NICUParents https://ift.tt/g3UjfnH