Bethenny Frankel’s estranged husband, Jason Hoppy, is accusing her of using him as a sperm donor in order to have their child, Bryn.

The former couple are still living together in their Tribeca, NYC home and divorce proceedings are ongoing, with the former Bethenny Ever After stars not able to reach agreements.

“During a recent argument, Jason accused Bethenny of using him as a sperm donor in order to have Bryn,” a source told RadarOnline. “Jason was pushed over the edge because Bethenny is going forward with her plans to win sole custody of Bryn.”

The insider added of Hoppy, who still wears his wedding ring, “In what world does Bethenny live in where she thinks Jason would just walk away from Bryn? It’s clear to Jason that Bethenny once she had their child, she got what she wanted from the relationship and she walked away.”

Sources say Hoppy still wears the ring because he will do anything he can to “push her buttons.”

In a recent appearance on Watch What Happens Live, Frankel, who launched her own talk show called Bethenny on Sept. 9, told Andy Cohen “fundamental differences” are what caused them to split after not even three years of marriage.

image: NBC