Prisma

Hi this is a doubt with respect to relations in my prisma schema. It is between User type and friend type                                                                              `type User {`
  `id: ID! @id`
  `name: String!`
  `username: String! @unique`
```}```
`type Friend {`
  `id: ID! @id`
  `user1: User! @relation(name: "FriendToUser1", onDelete: SET_NULL)`
  `user2: User! @relation(name: "FriendToUser2", onDelete: SET_NULL)`
  `status: Int!`
`}`                                                                                                                                                                           How do set this up properly, I want to set up a field called Friends in the type User which is linked to type Friend and which Cascades onDelete. Main issue is the fact that Friend has 2 users in it because of which I am unable to set up a direct relation. Due to the current scenario I'm not being able to delete Users also as relation would get violated. Please give me recommendations.