I agree with the advice the others have given you. If you find it hard to “let go” then, group outings may be helpful for you to slowly wean yourself off the dopamine high.

And to be fair, it’s not like she’s been blowing hot and cold and leading you on by dropping hints. I didn’t get that impression from the way you described things, so it may very well be your own interpretation and wishful thinking…

Nevertheless, good luck with things and I hope the dice land the way you hoped.