Confused ... when two partners come together, their energies mix, so, wouldn't one spouses energy expelling thus, by nature of their union, expel the energy of the other partner as well?
No. There are two separate circuits of energy. The male's circuit is completed by the female. The female's circuit is completed by the male. If one of them spills, it does not automatically mean the other one looses their energy. The
influence of the orgasm must be dealt with by the partner who is transmuting. This influence can become an obstacle, but it does not mean that the partner who is transmuting looses their energy automatically.
To transform that influence, partner who is transmuting must tap the wellspring of love within their consciousness. Thus, their partner receives the influence of that love. The partner who is not interested in transmutation does not "automatically" become more agreeable to the idea of transmutation, but the influence is there.
All of this is something very intimate and related to karma.
So, yes, you can create the solar bodies without your partner's prayer, and you can eliminate the ego without your partner's prayer.