© RD / Orchon/Retna Digital 1 / 19
© RD / Orchon/Retna Digital 1 / 19

Jennie Garth is struggling to come to terms with her estranged husband Peter Facinelli's new romance, saying his blossoming relationship with Jaimie Alexander is hard to accept.

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The "Twilight" hunk split from Garth in March after 11 years of marriage, and he recently began dating Alexander, his co-star in TV drama "Nurse Jackie."

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Former "Beverly Hills, 90210" regular Garth says it is tough to watch Facinelli move on to another woman, even though she is quietly dating too.

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She tells People.com, "I think there will come a time when it won't sting so bad. But I'm not quite there yet."

Garth and Facinelli share custody of their three daughters Luca, Lola and Fiona.