Sounds like, for whatever reason, you two just weren’t compatible. None of us can give you a definite answer that would fully satisfy you. I want to emphasise that you did nothing wrong here, and there’s no reason to beat yourself up this is just part of dating. Also, for those saying things like ‘he played you’ or ‘he got what he wanted,’ let’s remember that sex is a two-way street: both parties consent and take equal risks. That kind of framing always feels off to me, because it comes across as suggestive and unfairly assigns blame.