Despite a pre-nup being signed a month before marriage, Sweeting is seeking spousal support from Cuoco

Ryan Sweeting is seeking spousal support from his estranged wife, Kaley Cuoco PEOPLE can confirm.

Sweeting, 28, is also requesting that the court’s ability to grant spousal support to Cuoco be terminated, according to the court documents obtained by PEOPLE.

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Cuoco, 29, who married Sweeting on New Year’s Eve in 2013 after a whirlwind 3-month romance, filed for divorce on Sept. 3 citing irreconcilable differences. The couple did have a pre-nuptial agreement in place which they signed a month before tying the knot.

While a rep for the Big Bang Theory star told PEOPLE that the couple had "mutually decided" to split after just 21 months of marriage, a source said there was "noticeable tension" between the two before their divorce.

“The few times Kaley and Ryan were out together recently, the tension was noticeable,” the source told PEOPLE. “You could tell the honeymoon phase had ended.