I'm so depressed and Idk where too turn too 😟

So my husband has a kid she's like maybe 2 yrs older then my oldest daughter and I'm just so heart broken and all I wanted too do what help but all I did was just open up some wounds and probably made them deeper I can't bare the thought of seeing and knowing that my husband isn't allow too have anything too do his own child I didn't know the whole story really I mean I talked too the mother and the conversation between us want amazing but when I told my husband about it and trying too go get a DNA test done too make sure she is really his that's when he told me the truth she told him that they could get one done but she didn't want him too have anything too do with her and that's when he told her fuck you and your DNA test because that's all he wants is too be in her life and when I had the conversation with the mother she basically said the same thing too me and all I can do is feel my husband's pain like I'm trying too hold in my tears because I could never imagine having too go through what he's going through 8 yrs Idk I just I feel bad and I now felt like I over stepped my boundaries with my husband he says he's not mad at me but I really think he is I'm just so Idk what you would call it I'm so heart broken