Libido issues are so different than erection issues.
CFM is on target, although overshot with some hyperbole. You’ll have to adjust to the new norm of having to actually be in the mood, or coerced into the mood, or take advantage of the mood when it strikes. It’s no longer as easy as pulling it out and touching it in order to get aroused. “Hard” and “horny” aren’t the same anymore, so you’ll need to work a little more at feeling it, so to speak.
Best of luck on the supplement route, I have had no good experiences there. Many years ago I tried some things just for fun and always felt like my head (the one on my shoulders) was going to pop off. Spiked blood pressure and pounding headache and sweaty palms and jittery. But those were more for erection than for libido.
P.S. - Super hot girlfriend would help. P.P.S. - Wife might be pissed.