A week after deactivating his Twitter account following a nasty exchange with comedian Jenny Johnson, R&B bad boy Chris Brown has returned to the social network.

In response to Johnson calling him a “worthless piece of sh-t,” Brown called her a slew of derogatory names and threatened to defecate on her. In a post for GQ.com, Johnson said that while she does not “regret” her part in the argument, she has “learned” from it.