Hey guys I need to know if this is normal

well let's see I broke up with my first boyfriend ever about 2 months ago, and well I've been reaaly depressed....the thing is that so far I don0t have a crush on anyone not even think someone is cute like nothing at all....which really worries me because it's like i my whole life I've always had a crush ...right know it's like NOONE not even someone famous ...........and it's like how can I forget my ex if there's nobody to replace him ......... I mean is it normal?