Feeling insecure and guilt in my marriage due to issues of premarital sex

I, convert, got married to a born Muslim husband who was a virgin until he married me. When I first talked to my husband, we did discuss the topic of virginity, but I would hide it from him after watching a fatwa about this same topic saying that one should hide past sins as Allah have covered the sin for them. I also think that it wouldn’t matter since I wasn’t a Muslim so I am not held accountable and I don’t have any emotional attachment to my past relations due to my immense respect for my Muslim husband. Later on, after the nikah was finalized, my husband found out the truth anyway. He was devastated especially because I had multiple partners which added on to the hurt. Because of this, he constantly tell me about his wish to have a second wife which hurted me a lot. He also said he would have loved me more if I was a virgin. This is because he is naturally a very jealous man, much more than the usual non-Muslim. With time, our love deepened by Allah’s will, but I keep having this hunch in me feeling like I trapped him in this marriage and that I ruined his happiness. And I feel extreme insecurity, constantly comparing myself to virgin women and feeling like I will never be good enough, because you can’t undo virginity. Eventhough I stepped into this marriage with good intentions, with knowledge of my distinct status of being a new convert, I think this initial disillusionment between us still left me broken despite my husband deep love for me now. How do I move on from this guilt and insecurity?