Is it normal for not wanting anything to do with my biological father?

I have had an incredible life. I've been fortunate to have a complete family structure with my real mom, my awesome step-dad (who I call dad) and four other half siblings that I love to death! Recently, my seemingly perfect life was completely shattered. My biological father has tried to reach out to me recently. I'm already sixteen, and I honestly feel like what's the point. He basically just showed up on my doorstep telling my mom he wanted to see me, his daughter after sixteen years of no contact what so ever. When I reached the doorway to see him reluctantly, he gave me a fake cheesy hug and kiss on the cheek, never had I felt so sick and so betrayed that he would ruin my life like this. He told me to call him dad which I rapidly declined to. He wanted me to move in with him, which thankfully both my parents said absolutely not. Anyways, he at least wants me to come over to meet his girlfriend and son(technically my half-brother) who I don't want anything to do with either. I want nothing to do with this guy, he has done nothing for me but cause heartache, confusion, and sickness. Does anyone have a similar situation? Can you please share it so I don't feel so alone.