Assalamo Alaikoum
Here is some explanations about women who were a good believers in life
mu'minate and who will enter to Paradise taken from
Tafsir ibn Katir :
Allah says in Surah N°56 The Great Event (al-waqi'ah) verse n°37
(إِنَّآ أَنشَأْنَـهُنَّ إِنشَآءً - فَجَعَلْنَـهُنَّ أَبْكَـراً - عُرُباً أَتْرَاباً - لاًّصْحَـبِ الْيَمِينِ
(Verily, We have created them a special creation. And made them virgins.`Urub, Atrab. For those on the right.) The Ayat describe the women who will be on the beds and couches, but since mentioning the beds hints to them, they were not directly mentioned.
Al-Akhfash said that Ayah,
(إِنَّآ أَنشَأْنَـهُنَّ)
(Verily, We have created them), implied the maidens of Paradise although it did not mention them directly. Abu `Ubaydah said that they were mentioned before in Allah's statement,
(وَحُورٌ عِينٌ - كَأَمْثَـلِ اللُّؤْلُؤِ الْمَكْنُونِ )
(And Hur (fair females) with wide lovely eyes. Like preserved pearls.) Therefore, Allah's statement,
(إِنَّآ أَنشَأْنَـهُنَّ)
(Verily, We have created them), meaning, in the other life, after they became old in this life, they were brought back while virgin, youthful, being delightfully passionate with their husbands, beautiful, kind and cheerful.
Concerning your questions :
why does she have to share her husband with Houris and other wives...why isnt women rewarded with a lot of husbands?
this is an other explanation taken from
Tafsir ibn Katir
(The first group to enter Paradise will be (shining) like the moon when it is full. The next group will be like the most radiant planet in the sky. They will not urinate, relieve nature, spit or blow their noses. Their combs will be of gold and their sweat of musk; and censers of aloeswood will be used. Their wives will be from Al-Hur Al-`Ayn. Their shape will be similar to each other, the shape of their father `Adam, sixty cubits high in the sky.)
Isnt Jannah a place where you purely get your wishes?
So some scholars say that men will have the shape of their father `Adam because he was the first human that Allah SWT created. And some other scholars says that men will have the shape of the prophet Joseph (Yusuf) who he was like an angel.
Allah says in the Quran in surah N°12 Joseph (Yusuf) verse n°31 :
"
So when she heard of their sly talk she sent for them and prepared for them a repast, and gave each of them a knife, and said (to Yusuf): Come forth to them. So when they saw him, they deemed him great, and cut their hands (in amazement), and said: Remote is Allah (from inperfection); this is not a mortal; this is but a noble angel."
What if you are married only one time during your life here? What about the women?
What i know that the prophet's
women did not get married after his death because they will be again his wives in Paradise. So scholars says that it will be the same for the person who were married only one time during his/her life.
I wish to be with my family, and with my husband.. and only me! it is discouring to hear that I will share my husband!
Incha'Allah, Scholars too says that if one of member of family is in high degree
daraja in Paradise and that his family in low degree in Paradise, Allah will rise his member of family to her/him.
I hope i did not make big mistakes because it's a hard question that people misunderstand and use it as point to reproach untruth things to Islam!
But we have to remember that Allah did not reveale a lot of His unseen and Allah knows best
Wa Allaho A'lam
WaSalam