flying to me and chewing me

hi! this is ellie my cockatiel who i’ve had for around 9 months (she’s around 11 months) as of a few days ago ellie started flying to me and chewing on me and chewing on the stuff around me. sometimes when she chews it’s very aggressive like she’s angry even though i donh think she’s trying to hurt me. she has a companion who she isn’t really bonded with, even though they are friends. any ideas on why this could be or if this is normal? before this for a few months she was always a very nibbly bird and chewed on everything. also she does have chews and plenty of things to chew on in my room