Resilience, you are a beautiful woman and will bounce back from this. Many of us have been in similar situations and we can tell you that God does move us forward.
The rough, but honest part, is that we might not ever find a man. But God still has things for us. Jeremiah 29:11-- "For I know the plans I have for you, plans not to harm you but to give you hope and a future."
My husband divorced me too and was in love with someone else--this was back in 1999. I was 25. I had the exact same feelings you are describing right now. You mentioned that your husband has filed--I'm not sure how long it will take the divorce to become finalized but we also have to keep in mind that (well, this is my personal belief at least) until the union is legally settled, we are still married, and that can take a long time. I know the six months it took to finalize my divorce seemed like forever in a day and ours was considered "easy" because we weren't contesting anything and did not have children. I know what it's like to feel totally rejected and wish you had someone to love you RIGHT NOW.
Seek out whatever support you can. Many churches offer a program called Divorce Care that might be very helpful to you--if nothing else, you'll find compassionate ears who know what you're going through. Seek out counseling and support groups through churches or community groups if cost is a concern.
I don't know if God ever wants me to marry again--it hasn't worked out that way and I know that when I was 25 if someone told me I was going to still be alone at 41 I'd have hung myself on the spot.
But I can tell you, life does go on, and God does help you through, day by day, hour by hour, minute by minute. And I know that especially at night, the minutes feel like hours. I have been able to do some things such as travel and visit family that I would not have been able to do if I were married, because of other obligations, and I can honestly say, though it's taken all these years, that my life is much more peaceful now than when I was living in a marriage that was full of conflict and strife.
We have a great community here and I hope you'll get to know some of us who really do understand how you feel and can encourage you on your way. I don't have children myself but many wonderful singles here have families of their own and always offer great advice and support.
You are not alone, and you are going to make it through. I know the biggest thing right now seems to be, "Will I ever attract a man?" but in reality, what needs to come first is, "How can I work with God to become the whole person He wants me to be?" without a significant other.