Orgasms getting worse?

So it used to be after I came I was tired, ready for a nap, satisfied, and relaxed. A few weeks ago I hooked up with this guy. It was kind of a first date so we didn't do much, clothes mostly stayed on but he did give me a tiny orgasm. First orgasm someone else has ever given me.

Now my orgasms are smaller, and afterwards I'm not as tired or relaxed. My clit isn't as sensitive after either. I can just keep going. I used to be crying after 2 orgasms but now I can have 12 and still want more. Anyone know what's happening?