We're not given the exact picture of how we get to choose our partners there in Jannah.
Note: Since, no exact answer is provided to us, we can only make deductions, that may or may not be 100% correct. Because, we don't know what will happen then in the hereafter, and what ever is going to happen, will happen as the creator wishes, hence beyond our scope. But all we can do is make educated guesses.
- People of Jannah will have free will.
They will have therein fruits (of all kinds) and all that they ask for. (Qur'an 36:57)
- But not complete free will.
Then (there will be) the Companions of the Right Hand;- What will be the Companions of the Right Hand? And the Companions of the Left Hand,- what will be the Companions of the Left Hand? And those Foremost (in Faith) will be Foremost (in the Hereafter). These will be those Nearest to Allah. (Qur'an 56:8-11)
These verses are talking about division of people into 3 groups, those who go to hell(left), those who go to 2nd class paradise(right) and 1st class paradise(foremost).
Some deluxe facilities are provided to the 1st class people, but not to 2nd class as the rest of the Surah explains. So what if the 2nd class people ask for those features in the 1st class?(based on my 1st point i.e. Qur'an 36:57). Well again we can't for sure say that they won't be granted, but our common sense says that they won't be granted. So, how is it contradicting?
Well, to prove that, the 2nd class guys don't at all ask those features of those of the 1st class. Hence, no contradiction.
Now, your question,
can I have my husband only for me, because I don't want my husband being shared with other paradise wives or Houri.
Now, you want your husband to not have other wives, but what if your husband wants other wives there? Allah, will have to grant both their wishes right? But, how both are contradicting?
So, to resolve, either you won't have those feelings of jealousy there in paradise(if you make it up to there) as you have today in this worldly life if at all your husband gets to have other wives(Houri), I mean you won't ask for that wish up there.... (or) you will be that Houri(only) for your husband created a fresh with wide lovely eyes. (Based on Qur'an 56:35-36, because the translations vary widely, and literally it is "Indeed, We [We] have produced them (into) a creation", so we're not sure if they're separately created along side original wife or the wife is created anew as virgin with wide eyes, imagine, if the wife today is darker in color, then what? No where does it explicitly say that a person will have more than one partner).
So we can make only guesses of what will happen there and this is left as a suspense for the believers to find out that in the hereafter.
May the creator guide us all.