Married woman wants out as she gets disappointed in marriage

This was sent in by a worried woman and she need advise!

"Dear Everyone,
My name is Cynthia and I have been married for a year now
but I am already fed up with the marriage. I want out but
my church is against divorce.

I met my husband, Ugochukwu, in church and in fact, it was
the pastor that linked us together and he forbade us from
having any form of premarital sex. Before I joined the church,

I had had my fair share of playing around in school and I am
a very sexually active woman.

We were not allowed to be alone so as to avoid any temptation
and therefore, we got married barely six months after we began
courting.

On the night of our wedding, when I expected to consummate our
marriage, my husband pleaded tiredness due to the wedding and
the reception.

Little did I know that he was hiding something from me until the
third night that I practically forced him to have sex with me.

That was when I discovered that Ugo has the penis the size of a
what a 10-year-old boy would have, that is when it is fully erect.

I was highly disappointed but I tried to cover it and get myself
tuned to it but apart from having such a tiny manhood, Ugo could
not last up to a minute.

And it has been the same all through and I am getting so frustrated
by this. I cannot tell anyone, not even our pastor so as not to
shame him.

He has given me the permission to have a sex partner outside but I
can't do that while married to him.

I think the best thing to do is to divorce with but anytime I bring
that up, he would cry and beg me not to leave him.

But for how long would I continue to stay in such a marriage?

I need advice fast.