Mixed signals!

Hi all, I’m in need of some help! I started seeing a guy 6 months ago, it was a casual thing to start with. Then lockdown hit and we spoke everyday and video chatted alot but was unable to see each other. Throughout the time of just talking and not meeting, the guy started saying stuff to me like ‘I’m going away with some mates and their partners in July, maybe you could sneak yourself and invite’ also saying he might take me out when life goes back to normal, and he also asked for me to plan something for his birthday! There was also other stuff along the same lines, anyways I was getting the hint that he liked me, throughout the time of talking and not meeting I was really starting to like him, he took a massive interest in my life and he seemed so lovely and caring. After lockdown finished I went up to see him and we had such a lovely datey weekend, I went over his, we starting teaching me how to play the guitar, we went for a walk, got a take away in the evening, I stayed the night and in the morning we made pancakes together. In the morning he didn’t really seem the same as the night before and he also decided to bring up that he’d been back on the dating sites, I was shocked as I thought he liked me, but also thought hmmmm is he telling me this to see how I react? I didn’t make a big deal out of it. After I left his I sent him a message just to say I was a bit shocked about him being back on the apps and that I had started to like him. He replied and said that he wasn’t ready for a relationship and was happy it being casual for the moment (I get the jist that he got very badly hurt in his last relationship). Anyway I said to him that I couldn’t do the casual thing with feelings involved. We didn’t talk for a couple of weeks and he cropped back up again, we were flirting and he kept trying to get me to go back up there again but I said no, not when it’s not going to go anywhere and I said to him that I needed time without talking to him. Again a week and a half passed and he’s messaging me again – almost like he can’t leave me alone, at this point I was feeling a bit better about the situation and I felt like I had my feelings under control and was happy to start the casual thing back up again, so we planned to meet and he said about doing it on a certain day, and I was honest with him and told him I had a date that day, he seemed fine but the day after he got slightly funny and said that he didn’t feel comfortable with me having a date and he ‘felt bad on the guy’ but he said he really wanted to see me, this was 2 weeks ago and ever since then he’s been very on and off and I just don’t understand it! He’s never been on and off before when he does message it’s short or he doesn’t reply, so I’ll leave it a couple of days and then next thing I hear from him again – literally so confused as I feel like he’s saying he doesn’t like me but the way he’s acting he is? Erghhhhh helpppp 😂😂🤦🏼‍♀️