@falserelic: Its totally normal to think that what she said is an excuse. There's a decent possibility that it is, but given the information (mostly that you have her phone number) she literally is busy. Maybe she wasn't talkative because she has a strained relationship with her mom, or her brother has a surgery and they're going to support him, or her dog is having a colon check. The point is, you don't know and you shouldn't immediately assume the worse because that sets an unfortunate precedent for you, mentally. I know its hard, but just don't think about that weekend. Not being as talkative? She probably got your call and likely is just as nervous about the situation, especially if this Danny has any sort of impact in her life. I'd be willing to bet she's nervous about splitting up with Danny, who is likely her boyfriend, as he's become distant (which is why she's mentioning him to you) and sorta fielding the prospective afterward or if she even wants to have another relationship at all.
Or I could be talking out of my ass and she just missed your call, had a previously scheduled dinner, and a massive work load. I don't know, and I can only guess wildly based on what you said. Either way, don't look at this like some sort of insane trick or wild goose chase she's leading you on - that sort of thing doesn't really happen in the real world with normal ass people. Life is just getting in the way, or somethin'