It's just a given that the lady gets to cum first. I am 65, I have had good few dozen lovers, and I have never had a male partner try to put his dick inside me before I have had a sufficient number of orgasms. (And if he did, I stop him and tell him I wasn't ready yet!) Some women rarely or never cum. Personally, I am multi-orgasmic. If I ever had a lover who did not make sure I had cum enough before attempting intercourse, I would not continue to date him.
I'd only make an exception if he was super good at fucking, and with lots of stamina. I do cum well from intercourse. But I know lots of women don't. That said, I want to be fully wet and aroused before I fuck, even if I haven't already cum. Sexting for a while before a date can get me to that point, where actual foreplay when we meet is less necessary. Sexting IS foreplay for me.
I thought this issue went out of people's mindsets back in the 1970s! Yes, some men have premature ejaculation, and can't fuck for more than a minute before they pop off. That's not MY issue. That is THEIR issue. If they KNOW they have pre-e problems (and it sounds like your partner does) that is all the more reason for him to learn how to pleasure you with his mouth and hands.
He should be learning how to massage your body with oil, kissing your mouth and neck, stroking your hair, playing with and sucking your nipples, squeezing or slapping your ass (if you like that), fingerbanging you exactly how you like it (asking you if this or that motion feels good), giving you oral sex, letting you blow him (if you like to do that). I personally love to give oral to a guy, it excites me. I can even cum from just blowing a guy, but I PREFER to be touched on my pussy too.
Your partner sounds extremely insecure and selfish and lazy af. I don't know if he's trainable. No man should be telling his female partner, "I feel like you're telling me what to do," and at the same time, telling her what to do to please him! What kind of bullshit double standard deal is this you are settling for? You're valuable, you're beautiful, and you deserve to be pleasured in just the way you desire.
By the way, I reported your thread to be moved to another section, since it's just a basic sex question, not a "poly relationship" problem.