<human>: Can you condense the text into a few key points?

I apologise in advance for having an extremely cliche post, and that all this could be solved by a simple 'Just ask him!', but unfortunately I'm not in the position to do that.

Long story short - I met this guy on Tinder and we got on well & went on a date. First time ever meeting up with someone online for me. It went spectacularly well & we've had three dates since (We've gone Ice Skating & the Drive In movies - he's paid on all dates). As he's paid, it seems fair to assume that he's into me, and after our last date we had sex. 

However, I've just signed onto Tinder for the first time in a week or so, only to see that he's deleted me off of his Tinder, only to pop up in my feed illustrating that he was online 15 minutes ago.

I'm confused as to why he's deleted me off there & why he's still active if he seems into me on the dates. Am I being played? I don't think we're at the point that I can ask him to define the relationship, but I'm not cool with being one of many girls he's seeing, let alone fucking.
<bot>: Guy I'm seeing has deleted me off Tinder but is still active on there, despite our seemingly wonderful dates. Am unsure of how to proceed.