Entertainment Tonight.

Reality star Jon Gosselin will speak out about his separation from his estranged wife Kate in his first TV interview since the couple filed for divorce.

"I took a lot of abuse from her," Gosselin tells Chris Cuomo on "Good Morning America" in an interview that will air on September 8.

The "Jon & Kate Plus 8" dad talks about the times leading up to their separation, "She called me, almost like, a lame fish ... like, I wasn't going anywhere. Well, excuse me, I'm having to take care of the kids. She's on book tours, she's doing all these other things. ... I'm standing there like, 'Your mom is gone again.'"

In the interview, Gosselin also reveals his feelings for rumored love interest Hailey Glassman and Kate's relationship with her bodyguard, Steve Neild. Click HERE for pics from Gosselin's trip to Las Vegas.

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