Should a 12 year old be responsible for watching after her little brother if there was another adult around?

Just wondering do you ladies have older kids and do you make sure your older kids help the little ones when you’re tending to the babies or handling some thing..?

I have a 12 year old and she helps with the kids & is with her four year old little brother alone sometimes when I’m taking care of my little one or they’re Playing the game or watching TV etc.

I’m not going to put all the responsibility on her because she is still a child but of course if someone is bullying him or something drastic happens and she’s around I’m going to ask questions…

But if there is another adult around I expect him to make sure the kids are OK. 

Well yesterday I walked to the trashcan & not because my boyfriend couldn’t do it but because I wanted to walk outside

when I came back my sons nose was bleeding all down his face tremendously and of course I got mad at my daughter because they were in the room together and have been in there together for about an hour… So I was wondering what happened

Of course I checked on them more than once and they were fine until I went outside and literally came back and it was upside down

But what didn’t dawn on me is that my boyfriend was sitting on the couch in the living room and didn’t even bother to check to see if they were OK.

He had said that his nose wasn’t bleeding that bad so basically saying that he didn’t think anything of it And that’s unacceptable

From what my kid said they told him that my son fell and his nose was bleeding but my boyfriend didn’t even get up to check and I posted the text message he sent me..

he keeps asking what was my daughter‘s job and what was she doing in the room with her little brother…

Aside of whatever happened you are an adult and still supposed to check to make sure that they are OK,

The fact that I had to come in and my son had blood all over his face down his shirt means that he didn’t even check to make sure he was OK or tend to him

Regardless of how much blood you said it was at first

he mentioned that he told my son to hold his head back but never got up to tend to him to make sure that the bleeding stopped because when I came in his whole face was bloody which means he did absolutely nothing and was negligent about the entire situation.

I’m very upset and don’t know how to feel about the situation other than to leave him alone because he doesn’t seem to put my kids first.

He also tried to say that my daughter probably tried to kick him in the mouth and still trying to blame everything on her instead of being a man and own up to his responsibilities to say that he should have got up and made sure my sons nose stopped bleeding

rather than me coming in my house and it being a catastrophe.

Please share your thoughts