You just need to give her some time and speak to her calmly.Allow her tantrums to calm down prior talking to her.Never ever mockef or laugh or it wil just worsen and escalate the situation.Some might think to crãcked jokes during expecting to diffused the rage but it won't mostly work.Once she's in that state,don't think anything she says personally.It is common for us women to say anything that is a bit hurtful during tantrums but we didn't mean it.Just lean to have patience and acknowledge her feelings calmly.You just learn to spot what triggers her to act that way.