Jennifer Aniston reacts to Selena Gomez dating her Ex Boyfriend! May 14, 2019 Ausadmin Celebrity News and Gossip Jennifer Aniston reacts to Selena Gomez dating her Ex Boyfriend! Remember how I told you all at the end of last week that Selena Gomez has been leaning on Justin Theroux…well, apparently his ex-wife…Jennifer Aniston has some thoughts about that.