So usually my boyfriends bm is rude and disrespectful. We've had numerous arguments in the past but no physical altercations. I've tried to put my pettiness aside for the sake of the girls but she would just kept going. A girl can only take so much so I lashed out back at her. We are trying to have kids and want this resolved before then, because I want the girls to know their siblings. Today she messaged me and apologized and was telling me we have got to the point where we need to respect eachother. She started telling me the girls love me and they need their father and we can't have this. I apologized but something tells me she may not be sincere. Should I still keep my guard up ?