Should i be angry at my brother?

Ill try to make the story short.

I introduce him to a girl, it was his irst gf an he moved to my state for her.(he lived 3 hours away, he was like 18). Now they broke up like hal a year ago. And since then hes been trying to get with my exs. Hes very shy n quiet but since they know me , i think he finds it easier to talk to them.

Anyways, he tried to get with thi girl i was with for a long time... I told him if e rly like her to go for it, cuz i wasnt guna get mad over a girl... But that girl was family with his ex, so she **** him down.

Then he tried talking to my ex i used to go visit at the mall.... She only saw him as a friend.

I told him i tried talking to this one girl, but failed, so he randomly started taljin to her.(he didnt even know her).

Then he started talking to the girl i told him i really loved(this is a current situation).

And he tries to talk to my current gf, (who is the mother of my child) and flirts with her and stuff...

Keep in mind hes older than me, so hes just talkin to random younger girls.

I try not to get nad at friends over girls though, specially exs. But i just feel lime i cant trust him. Like theres no respect and no loyalty coming from him... What do u guys think?