Its also likeley that his dad wont take kindly to hearing that about his son , and your P will probably take big offence at you daring to speak to anyone about it and he will probably twist things round anyway to blame you . They generally do.
He doesnt need to be told its wrong because he knows full well , which is why the yelling probably only happens in private , he doesnt want anyone else to see . He feels entitled , your his partner ( his property ) and your job is to meet all his needs all the time and have none of your own . If you dont do this , or god forbid actually ask anything of him , you will be punished accordingly .
I said earlier that all these turds follow a scrpt , its predictable and happens in stages . It sounds like at the moment hes being verbally abusive to shut you up , or to punish you for daring to be a real life person with needs of your own ( like wanting to go home to feed your baby ) . They often are abusive when you express a want or need of your own , it sends them into a fury.
If hes not already , he,ll soon be punching doors or throwing things around to physically demonstrate how YOU have wound him up. ( Look what youve made me do ). Expect him to be "sorry " and full of self pity afterwards and revert to being nice for a few days . He,ll probably also start to pester you for sex regardless of how you feel about it , or start groping you .On and on it will go until you dont recognise yourself anymore and your life revolves around him and avoiding upsetting him .
Sadly the script is very very real , you can read about it on line , and there are various books that describe it . Its impossible to change the script as those of us who have tried can testify. The only thing to do is refuse to be part of it .