His world is his family, his friends, his kids, his business, his house, his assets, etc.
That's his world!
That's his energy reality!
Very often you will feel this desire to keep in touch with his friends or family members.
Don't!
Unless you built something super solid with one of them that no longer depends on him, dissolve that too!
Every time you see this friend of his, he will remind you of your ex.
It keeps you hooked on the past.
Put it this way:
Do these people really want to stick around and be friends with you?
Or are they doing that out of pity?
Don't you think they will soon be investing their friendship and energy into his new date?
Don't fool yourself!
In most cases, these people stay part of HIS world, not yours.
The minute they have to take sides, it is towards him they will lean, no you!