@Lee Lee Actually you got everything right, or at least I believe that as well, because I don't believe anyone was at fault here.
Both alpha and omega agreed having this nuanced relationship were alpha helped but never to pressure a serious relationship from the Omega, and I think is valid that the alpha doesn't want this relationship anymore, obviously that made the omega very afraid of the consequences of not having that help for the reasons you mentioned before, but I think this got out of hand and now both of them are hurt and afraid because they didn't want the same thing from the start.
I believe the alpha should've been honest from the beginning that he was pursuing more than a one night relationship.
Both alpha and omega agreed having this nuanced relationship were alpha helped but never to pressure a serious relationship from the Omega, and I think is valid that the alpha doesn't want this relationship anymore, obviously that made the omega very afraid of the consequences of not having that help for the reasons you mentioned before, but I think this got out of hand and now both of them are hurt and afraid because they didn't want the same thing from the start.
I believe the alpha should've been honest from the beginning that he was pursuing more than a one night relationship.