OP first of all you are way to invested in this girl who has given you NOTHING,
could you imagine if she actually gave you sex how you would behave?
The number 1 rule of pimp club, is women crave non sexual attention. They will rinse men of it all day and all night, then they will ghost as if you never mattered... this is there version of "Post nut clarity"
her DM'ing you, and you replying is the equivalent of getting her off, but she hasnt got to move off her sofa. Ontop of this she probably has a hunk blowing her back doors in.
can you imagine the ego trip going on in her head for being average?
Go No contact this instance, telling you about her date.
NO MORE MR NICE GUY