@Rat83
rampant discrimination has little to nothing to do with logic
my guess would be concerning her and his bestfriend... much like with the retired adventurer that suddenly became the father of a cursed slave girl
thats friends worked some curse to steal the mc's result and talent
and used a charm magic or similar to slowly influence the gf
till he got her in the bag and only needed to sever her attachment to the mc which is why he spread the rumor or even caused it in the first place
so that he can pick up the pieces
also that date being seen by the mc was probably also a scheme to finalize the split because she might break his influence if the mc doesnt quit trying to get her back
so going forward he will probably deflower her so when she finaly come back to reality she wont have any face left to ask the mc to take her back making for a nice drama....
well if she is not under a charm spell then she is pretty stupid and not worth the mc's time
because she pretty much unilaterally decided things without even trying to talk and sry but thats not being in a relationship unless it is one with herself
well there is also the possebility of being complicit with the best friend but thats should exclude her from a happy end anyway
so yeah if she wasnt manipulated by magic i would drop this as soon as i see the shadow of the mc accepting her back because being the victim she wont learn anything from this experience pretty much setting the mc up for a long painfull road full of sink holes