ldc-legaulois/app/Models/BlockList.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class BlockList extends Model
{

    protected $fillable = [
        'customer_id','blocked_id'
    ];

    public function customer()
    {
        return $this->belongsTo(Customers::class);
    }
    public function blocked()
    {
        return $this->belongsTo(Customers::class, 'blocked_id');
    }
}