EF Core how to add two same object in 1 model

public int UserId { get; set; }
[ForeignKey("UserId")]
public AccountModel Account { get; set; } = new();
public int MarkAsPaidById { get; set; }
[ForeignKey("MarkAsPaidById")]
public AccountModel MarkAsPaidByAccount { get; set; } = new();

public int UserId { get; set; }
[ForeignKey("UserId")]
public AccountModel Account { get; set; } = new();
public int MarkAsPaidById { get; set; }
[ForeignKey("MarkAsPaidById")]
public AccountModel MarkAsPaidByAccount { get; set; } = new();

[Table("Accounts")]
[PrimaryKey("UserId")]
public class AccountModel
{
    public int UserId { get; set; }
    public string Username { get; set; } = string.Empty;
    public string Password { get; set; } = string.Empty;
}

[Table("Accounts")]
[PrimaryKey("UserId")]
public class AccountModel
{
    public int UserId { get; set; }
    public string Username { get; set; } = string.Empty;
    public string Password { get; set; } = string.Empty;
}