Robbie
It sounds like he is the non commital type of guy https://youtu.be/jZ6RdEr31yQ. Given he was dating multiple women. It’s hard or even impossible to change other people’s feelings by asking them, you have to demonstrate why he should change his feelings. Maybe by dating a new guy and inadvertently showing that you don’t need him. Reaching out to him may push him away further at this stage I would suggest giving it some time. It may feel daunting but shift your focus from him to yourself. If you think about him catch yourself and shift your thoughts back to how great you are! Before you know it he might reach out to you, or you might end up with being with someone who doesn’t treat you like a number.
You can do it!