I met my biological father

Please read until end I need some of your guys advice.

Hi guys I'm 23 yrs old mother of 2 and happily married. I remember being 15 and my brother coming up to me and saying I think we're adopted look. He found some adoption certificates with our names I brushed it off. He comes up to me the next day with a message from our bio mom saying this is your mom state took you guys from me etc. I still didn't believe it he was 14 at the same so I thought he was lying. So I went up to my older sister and told her. She obviously said it's not true. Later on that day my parents were in the living room no tv on just sitting there. They called me over to come sit in the middle and everything spilled out. I was crying and confused. When they told me would you like to meet them I said no with tears flowing down my face they asked why and I said because you guys are my parents they said thank you so loud and cried with me. My brother of course already met our bio mom. Turns out she was dealing drugs while in the winter carrying me around with only a t shirt. Only a few weeks old she shook me bit me I mean the list goes on. I eventually met my bio father he seemed obsessed he told me he stalked me on Myspace because he looked me up and his wife sent me a message asking if my brother was Adrian. Weird... He made me feel so uncomfortable. He ended up buying me a cellphone to have contact with him. He was literally texting me every second and I was annoyed I would ignore him. He then came to my parents house to have a talk told me I texted him about 100x and my friends over 1000x like wtf. He then told me I can't use the internet no more. One day I went to sleep over and i don't remember what the arguement was about but he told me if my parents come to get me to leave the phone here and to never come back. My parents showed up anyways with my inhaler because I was having a hard time breathing from crying I was so scared. My mom asked if I wanted to go back home I looked at my bio dad and he was staring at me pissed so I said no. I called up my brother which is with stayed behind with my parents because he had a bad feeling about our bio dad. I told him what happened and he wanted to come kick his ass he was so mad (I literally don't remember what happened) like as soon as we came into his life he expected to be called Dad. If we called him by his name he'd be pissed but I never ever called him dad to his face. He was so controlling and I just felt so weird. I remember once I turned 16 he wanted me to stay with him and his wife for a week so he came to my parents house to talk to us. I told him no and to leave. He called my friend's phone because the last arguement he took the phone. So he called my friend's phone talking all this junk to me and called me a bitch. When I hung up he kept calling me and calling and I finally answered and told him to stop fucking calling your not my dad and he called again I answered and he started calling me more names so I never talked to him again. When I became pregnant I opened that door again I was pregnant at 16 gave birth at 17. I stopped talking to him again when I was about 6 months because the controlling shit again. My husband which was my bf at the time lol told me he sounds like a damn boyfriend up your ass get him out your life. I gave birth December 14 2012 and guess what flowers a bear and a balloon were sent to my hospital room no note from where but then I ended up finding out it was him. I reached out when my child was 2 things were great he and his wife watched my son all the time but here it goes again the controlling shit of not calling him and texting him talking shit on FB I mean it's been happening for years I stopped talking to him until this year but he doing those little stupid texts again like oh I texted you but you didn't text me back wanted to see you guess not bullshit what do you guys think I hate being to fucking nice btw he met my 7 month old when he was 2 months and I'm keeping my distance but idk what else to do