Kylie Jenner and Tyga are either going through a rough patch in their relationship or the reality television star has some serious trust issues. There's a new rumor suggesting that 17-year-old Kylie is "stalking" her rapper boyfriend, as she's afraid that he might cheat on her whenever she's not looking.

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According to OK! Magazine on Monday, insiders say that Kylie and Tyga might be headed for a major breakup as Tyga is fed up with his girlfriend's controlling ways.

A source told the site that things are so bad that Kylie is now obsessively checking Tyga's phone for any mysterious messages just to make sure he's not cheating on her.

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An eyewitness said that Kylie recently secretly "followed him and has even asked friends to hit on him to test his loyalty."

The source added, "Tyga definitely is not pleased with his girlfriend's antics, but he's not ready to pull the plug on their relationship just yet, thanks to all the new attention he's gotten since dating her."

What's more, the tipster said that Tyga "thinks she's nuts, and he's only with her for publicity at this point."

So far, neither Kylie nor Tyga have made any comments regarding the rumors. The couple has been dating for a little over a year.

Keep up with Enstars for all the latest news on Kylie Jenner, Tyga, the Kardashian family and all of your favorite reality television stars.

Tags: Kylie Jenner tyga