Back story is this, I’ve known this girl for 2+ years, known she’s liked me in the past and moved in with her in a shared house at university with 3 other people. Moved in, started fucking, she got upset at some shit and called it off with me, went home for winter break, didn’t message her, started fucking after returning back to the house.

Last week she said she’s going to see her ex, she went to see him for a walk, told me she isn’t sleeping with him (haha). The day after this we have crazy sex and afterwards she asks what we are and we both agree we aren’t ready for a relationship and agree to fwb. This weekend she goes off again to see her ex for a walk. I say ok I’m gonna go see this other girl for a walk too. So this morning I fuck off with this new girl, she asks her name, says she’s intrigued etc. I go for the walk, out the house for an hour and when I get back it’s silent treatment. My fwb isn’t talking much, isn’t all over me like she usually is and idk how exactly to handle it or what she is thinking. What’s the best way to proceed with this? Just act normal and hold frame and wait for her to crack?