Search Results: clothes for second date

I met a guy on OkCupid a few weeks ago. We've been on a couple dates, and a couple days before our second date I noticed that he deleted his OkCupid profile (we moved the conversation elsewhere so we didn't lose contact. Also I deleted my dating apps after this). On our second date I kind of mentioned that he deleted it and his other dating apps. He said it was because me met me and he felt like he didn't need to use them anymore. I know it's a bit early since it's only been a few weeks but is there any way to tell if he wants something casual or serious?

Sidenote: we had sex on both dates lol the first time was unexpected and happened in the moment and the second time was expected. When he had sex on the second date, he started twitching after he finished and couldn't get up for a few minutes lol what does that mean? And after we put our clothes on he just wanted to cuddle/spoon and listen to music. Is that a sign of wanting intimacy? I have no clue please help haha

I think that my bestfriend have a crush on the guy that I talk to. I don't know if it is jealousy or if it is because she think she can pull him. Funny thing is she talk to his brother. Sorta.. Because his brother barely respond to him. I noticed something that she did. On our first double date, she was wearing a booty shorts romper. That is cool because the guy she talk to was there so I didn't care. But recently, he took me to Kings Island, and she went to hang out with us. The thing is his brother didn't show up! First she worn tight clothing and kept pulling her clothes up in front of him and walking in front of him. Second, she kept talking about how boy was checking her saying that she got a big butt in front of him. Third, she sat in-between us whenever we sat down. That made me mad! And she was playing footsie with him! But I think he noticed I was annoyed so he stayed close to me. I just learned that when I went on a ride with a little boy that was afraid she touch his stomach and moved closer to him. My cousin told me, I looked at all the sign and knew about it but I didn't want to say nothing because we haven't been talking that long. It only been a week! What is really bothering me is the message she sent asking me do I think that the guy I talk to and I will work out... I don't know but that happened two weeks ago and it is still bothering me. I wanted to ask him if he noticed anything but I don't want to over think it because she talk to his brother. Should I talk to him, we only been talking for a month now. I told him I want to talk too him about something but I am waiting on y'all opinion first before I do something crazy lol. After I talk to him I was going to talk too, I just don't want to feel like I am overthinking the whole situation. I feel like he would have noticed as well.