All perfect praise be to Allah, the Lord of the worlds. I testify that there is none worthy of worship except Allah and that Muhammad, sallallahu ‘alayhi wa sallam, is His slave and Messenger.
We do not know why you let yourself get carried away with these thoughts that are of no benefit except that they preoccupy your mind and waste your time and distract you from what benefits you of worldly or religious affairs, especially given that you mentioned that you know that there shall be no jealousy or bad feelings in Paradise.
Since Paradise is the abode of eternal bliss, there shall be nothing in it to sadden anyone's life. In general, the matters of the Hereafter should not be judged according to the standards of the life of this world. If you wish to ask us questions, then you should ask about the beneficial matters that lead to doing good deeds.
Ibn Muflih wrote, "Chapter: It is disliked to ask about hypothesized matters, things that do not lead to good deeds, and future events that have not taken place yet ... Al-Marwazi reported that Abu ʻAbdullah (Imaam Ahmad) said, 'A man once asked me about Ya'jooj and Ma'jooj (Gog and Magog) and whether they are Muslim or not. I said to him, ‘Have you acquired all the knowledge you need so that you ask about this?’'" [Al-Aadaab Ash-Sharʻiyyah]
You and your husband should be keen on helping each other to obey your Lord so that you would be together in Paradise. There is no harm in asking your husband not to talk about Al-Hoor Al-'Een if it makes you jealous.
The hadeeth of Muʻaath, may Allah be pleased with him, is clear; it warns the wife from harming her husband and clarifies that he shall have other wives from Al-Hoor Al-'Een if he were to enter Paradise. It also says that he is like a guest with her, and when he dies, he will leave her to his wife or wives from Al-Hoor Al-'Een. It should be noted that it was reported that in Paradise, the wife from this world will be more beloved to her husband than his wives from Al-Hoor Al-'Een.
For more benefit, please refer to fatwas 82372 and 144709, which underline that there is no pregnancy and reproduction in Paradise.
Allah knows best.