If it was wrong for women to have sex with immortal angels on the earth, then maybe you should stay away from mortal women on the earth if you are immortal. I am hoping something in our desires change when we are transformed to be like Christ. My understanding is that struggles with the flesh are for this age.
There is probably some country where a mature white man could find a young woman to marry here in this age, maybe some tribe in Africa. I think this happens to some extent in the Philippines, too. If the US dating market isn't working for you, you could look overseas. Now, I married in my late 20s, and I didn't go overseas just to get married. I was working overseas. But I married an Indonesian woman, and a lot of women there are kind of traditional when it comes to marriage-- wanting to take good care of the household, etc. It's a majority Muslim country but there are also millions of Christians.