Forgiveness

So this weekend I got a message from my dad saying he loved me. It is odd because I can go months without talking to him. I asked him what was going on. He said to text his wife (my parents are divorced). He then starts to tell me how he's playing a suicide role to get her to talk to him. And by me texting her made it seem more believable. I told him that it wasn't funny. That I was worried. He stopped texting me. I showed up at his house and he kicks me out. Told me to leave him alone. That's exactly what I'm doing. I then got told that I need to forgive him and that everyone makes mistakes. That one day I might make a mistake and want forgiveness. It's infurating how I'm suddenly the bad guy for wanting to keep a toxic person out of my life.