My husband cheated on me

My husband admitted to cheating on me. It’s been the hardest thing I’ve ever been through. I’m willing to try to forgive him and try to fight for our marriage. The unfortunate part is the one he cheated on me with is still trying to pursue him. We’ve changed his number, blocked her from everything. She’s used 2 email addresses and we blocked those. She’s married with 2 kids. I’m disgusted by both my husband and her actions. My husband said he won’t do it again and I’m trying to believe him. I told him if she continues to try to contact him I won’t be able to stay with him. I’m physically sick and heartbroken over this but I love and hate my husband at the same time. Am I wrong to try and save my marriage. As much as I hate my husband right now I hate her just as much. She told me if she was me I’d wanna be her too and that just made me so made. I don’t want to be a home wrecker or an adulterer like her. I did nothing wrong and at first I blamed myself. I gave everything to my husband and his son and loved him unconditionally so I know I don’t deserve to be cheated on. I’m just hoping I can begin to trust him and move on together!