Are Scorpio males persistent?

Just curious. Long story short...my best friend and I met up with some guys we knew from elementary school. Scorp guy liked a bunch of pics of my friend on fb. We assumed that he was into her. Me and scorp were not friends at the time. He assumed that I like his friend. Scorp and my friend had an awkward sexual encounter which led to silence between them for awhile. Fast forward...he texted me saying some suggestive things and when I brought up my friend he said he mistakenly texted me instead of her. I didn't immediately believe him but my friend did...so I gave the benefit of the doubt. I called him the next day to clear everything up. He basically said that it was a mistake but we are all grown and single and he didn't know we were as close as we were. I made it clear that we dont share penis. He made a comment that he wished he had gotten to know us both before choosing her. I brushed it off. They had an even more awkward encounter later. So he just sent me a message on glide on friday at around 11:30pm. He asked what I was doing. I brought up my friend. He said we are grown and single. I agreed because he formed it as a question. Then he was like so.... I told him so have a nice night. He asked me to hit him up soon. Come to find out they ended up hooking up that night. This night she said the sex was good...so does that mean he wont try to hook up with me anymore or do scorp get something out of conquest? I dont want my girl getting hurt by a douchbag but I dont wanna tell her to stop talking to him because it makes her happy I guess.

tell her right now he tryed to hit on u and said he wish he would have picked u over her

He sounds like a major douchebag to me. In astrological sense yes Scorpios are persistent as it is a fixed sign - they have hard time to give up on things they've decided to have or get. Also they may be secretive and all this of course depending on their rest of charts.

The first "accidental" texting, I was on the phone with her. I told her everything as we were texting. I didn't tell her that he kinda said he would have chosen differently cause her self esteem is a little fragile. She even expressed that she felt good that he had the option to choose and he had chosen her. I did tell her about this last conversation though. I don't think she wants to stop seeing him even if it is only once a month. She likes him because he is a handsome guy. She said she wanted to ask him about the whole situation but doesn't want to be confrontational. Hopefully, he wont contact me anymore or maybe I have to be rude and nasty to him if he does... Thanks!