about that workmate na may ere

hindi ko alam kung ako lang pero i feel off talaga dito sa workmate ko. we communicate remotely/online naman pero ang problem ko sa kanya, may ere siya by the way he interacts and communicate with me. For instance, kapag magbababa ako ng reminders, either seen lang siya or ang cold ng reception niya sakin; never niyang in-acknowledge ng maayos and professional yung mga messages ko kahit replies as compared to my other colleague. he never greets kapag may concerns or tanong siya. worst part is, hindi ko naman siya manager or supervisor. mas maayos pa sila makipagusap sa akin lol. like idk i don't hate him but somehing about the way he acts to me feels off or oa lang talaga ako HAHAHAHHAHA like I'm not expecting something friendly siguro yung professional and proper responses lang at hindi yung kung ituring ako parang tau-tauhan niya lol