hey guys i got two problems with two girls. soz if they are a bit lengthy

first girl, really nice, probably hb 7.5. anyways i met her at a festival and we had a great time, picked up,
just kissed tho and exchanged numbers . We are both on holidays now and she said we should catch
up again some time and i'm like yeah, so all going good so far. Then we send a couple of texts to each
other saying how we should meet up again and i suggest thursday? she replies with "oh sorry i cant,
i have friends coming over" so im not too fussed because sure, it could be incidental.
But then me and my mates were going to the movies monday and i asked if she wanted to "tag along",
she said that she wanted too but was "working". So i suspect she is flaking on me, and if so why?
was it the conversation leading up to the asking? or was it how i asked?

second girl: ok so this girl is cool, got an amazing body, probably only a 7.3 tho (she has braces)
i know that sounds bad, but i like good teeth. anyways i asked this girl out, and she said LJBF.
i was cool with that and later i asked her why, and she said she's never had a boyfriend before
and she wants to really love the first one, bit strange i know. So I suggested a friends with benefits thing
and she said she'd consider it . Problem is haven't talked to her in about a week,
so i'm guessing not too keen on the idea. Question is,how to recover from that? like if you said
something that was awkward or embarrassing, how to recover from it?