Wishing husband to be only mine in Jannah

I am a widow, I lost my husband 2 months ago, he was suffering from cancer. We have twin 7 year old boys. I love my husband and he loved me very much and I was his only one wife in his life. He was a good Muslim and he helped me how to be a good wife and good Muslimah. I am a young mother and widow, I don’t have anything except my boys and USA citizenship. I live in New York. I have to go long way to educate my 7 year old boys, I will do everything for them, I don't have any helping hand here except Allah and it is enough for me. I love my husband and everyday I am trying to be a good widow and good Muslimah. It is hard as a single young mother, but I am doing better everyday. **Question:** Is it possible for a good widow, if both of us go to paradise, to have my husband only for me? Because I don't want my husband being shared with other paradise wives or houri (I heard every man will have 2 wives in paradise.) Please answer me.