Praise be to
Allah.
If a
thrice-divorced woman gets married to another husband, but has the intention of
getting divorced from him so that she can go back to the first husband, there
is a difference of opinion among the fuqaha’ concerning that. Some of
them regard it as coming under the heading of tahleel (a marriage aimed at
making it permissible for the woman to go back to her first husband), which is
haraam, and some of them say that her intention does not affect anything.
See the answer
to question no. 131290, when it
says that the opinion that this is haraam is more likely to be correct, and
that if the woman gets divorced she does not become permissible for the first
husband.
You did right to
repent and go back to your husband and ask him not to divorced you, because it
is not permissible for a woman to annoy her husband or ask him for a divorce
(talaaq or khula‘) unless there is a reason that makes it permissible to
do that, such as if he is mistreating her.
But if this
husband divorces you of his own accord or in response to your request because
of his mistreatment and his speaking harshly to you, without the intention of
making it permissible for you to go back to your first husband, then it seems
that once your ‘iddah has ended it will become permissible for you to go
back to your first husband, with a new marriage contract.
And Allah knows best.