This is just my view of LOA, and there are people on this forum who think differently, but you don’t need self love in order to manifest anything. Not even a relationship with another person. It all comes down to what you believe.
The reason I say this is because there are people who have gotten exes back or who are in happy, long relationships right now who don’t really seem to love themselves. The reason why this works for them is because they believe their significant other loves them, even though they don’t feel great about themselves. Think about it, if the rest of the world seemed to hate you at one point, wouldn’t your mother still love you (assuming you have a good relationship with her)? How could this be if self love is a requirement before another person can love you? It’s just because you believe that she will love you no matter what, and that’s what you experience.
We are manifesting every single second of our reality, self love or not. We never stop manifesting. I’m not speaking against self love. I think it’s great! And what it does is it makes it easier for you to believe that another person loves you because you find yourself loveable. That’s how it relates to manifesting a relationship with someone.
So if you find that you can believe that your SP loves you and will never leave you right now, then you’re fine. That’s all that’s required!
Hope this helped.