I know, my engrish are just plain bad. I also laugh at it.
before she fuck him, she suck his cock behind Ada. Does that count as "feel safe"? not to forget that she HJ him at the cafe too.
i see you choose sex friend route,if you choose to not let her suck MC dick,she will start to think MC is not like other guys out there and she will slowly fall for MC until they have sex in the current update..her perspective about men change when she meet MC,before,she been used as sex slave and men sex toy because of her mother cant afford to settle the debt..thats why when she meet MC for the first time,she tell him,she really experienced in sex because she used to please thugs..she is scared and really secretive about her problem,until MC find her in mess full bruises and lost her hair..since then,she is paranoid and scare of men,when a men trying to touch her,she start to imagine things that happen to her before..thats why i call the MC her guardian..
This is just my opinion..