I [21F] pretended to have an orgasm with the guy I'm seeing [24M]. Should I be honest with him about it? If so, how should I approach the conversation?

I've been seeing this guy since December 2025, and we've been intimate on several occasions. I find it difficult to reach orgasm because of my anti-anxiety medication, which means I don't climax as often as I'd like. Recently, he mentioned that he wants to help me achieve orgasm more frequently since it has only happened once, and he feels a bit of an imbalance since he finishes much more often than I do. He suggested that we should work together to figure out what works for me next time. When that opportunity came, I thought I had expressed what I desired clearly enough, but I still couldn’t reach orgasm. Not wanting to make things uncomfortable or awkward, I ended up faking an orgasm to bring things to a close. Now, I feel guilty about not being truthful and for not communicating effectively. I'm unsure if I should bring it up with him—I don’t want to create tension in our relationship since sex is significant for both of us, but I also don’t want to let him down.