Should I leave my Cancer man alone?

Hello lovelies, I kind of just wanted to get advice from anyone who's involved with a Cancer or has been. My Cancer man and I have known each-other for a while. In the beginning of our whole friendship, he wanted to get with me but I was with someone else. Time has passed, and he'd still manage to leave a few texts here and there. He was a total fuckboy in his part, so that's why I never took him seriously.

He's asked me out twice BUT while I took it seriously, he was only joking. Which he didn't tell me it was a joke so all that time I was left extremely confused. He finally asked me out a week ago, and we've been skyping, joking around. (This is a ldr). He will say really cheesy things, and it was odd to me because a few days after we started dating, he exploded and told me to, "stop fucking around with him if I'm joking," after I told him I really liked him. That misunderstanding was put aside, and he's told me that he LOVES clingy girls. That it shows that they care, and of course Cancers fall so deeply. As a Libra, and an air dominant, I'm too scared to show any clinginess, but some of my other placements will satisfy him completely. The one thing I dislike is that he asks for nudes, or ass pics, and he knows it. I've told him a few times that I'm not that type of girl, but he still bugs. In fact, he's gotten angry and usually does get angry when I don't. I do know he's serious about this relationship though, I have a gut feeling that he's just used to getting this from previous girls he's talked to in his past. Earlier today, he had the nerve to ask again, and I've completely refused, he even believed I got mad over the phone when I was just stressed out. He was like, "do you want me to go? Before you start lashing at me." But after that, I feel like I got a bit too clingy because I sent double texts when he leaves me on read, and then left me on read again. Last time, I didn't text him because I thought he was busy, and I'm not used to texting first. He later lashed out, asking me if we were still together, and that I better have a good explanation for not texting him. I found this more of a turn-on lol. Yet, still, he's starting to show his distance, and I'm wondering if leaving him alone is the best idea. I know I have to be more demanding of what I want in this relationship, and reassure him that I'm grateful to be in this relationship with him. Kind of just want to start this relationship nicely. I've never dated a Cancer man before, so I'm new to this. Thank you for taking the time on reading this.~

Oops, he's also he has

Cancer Sun

Aries Moon

Cancer Mercury

Cancer Venus

Libra Mars