“The breakup was ugly and still hurts which is why Alex doesn’t want to hear her voice when he is out trying to enjoy himself.”

Recently, Alex was spotted celebrating his birthday in Saint-Tropez where he and his friends were dancing the night away to anything but Jennifer Lopez songs.

“Can you imagine how embarrassing it would be for Alex to be partying and suddenly her music starts to play?” asks a pal.

“You can’t blame him for wanting to make sure that doesn’t happen.”

Hampton’s insiders add that venues out East have been scrambling to make sure Jen’s music isn’t on rotation when Alex is around. “If you really want to make Alex happy, play Mariah,” laughs a friend.