Boruto's unforgiving lies.

Boruto gets to know Momoshiki a little better after their thoughts started connecting.

He decides he wants to keep it a secret that he and Momoshiki have been talking lately, matter of fact he He completely tells a different story saying that he hasn't seen or heard Momoshiki in a while.

Boruto doesn't fully know the consequences if he lets it spill but he is done fighting.

He decides that he can do whatever he wants with his karma as long as Nobody finds out.