update since my pregnancy

Jan 26th I had Christopher who is 4 months old now. His father went to every doctors appointment with me but also cheated on me in the postpartum 6 weeks when we weren't allowed to have sex. Adding in that it was with our coworker as well as someone pretending to be my friend... can I ask how someone can visit you in the hospital after you have a baby and then sleep with your significant other? I talked to other friends that also work there and the rumor mill went and my bf and the woman both were looked at differently which is how it should be I didn't feel bad for either of them they both made the choice. And now as she "tries to be my friend" I don't trust her and I cringe when she talks to my baby like nothing happened. As for brett he knows I don't trust him like I use to and any screwup lands him sleeping/living in the car....