Guys, does it hurt if your ex girlfriend did not wish you happy birthday?

my ex boyfriend of 2 years dumped me 6 months ago and he has recently found a new girlfriend and so I don't know if I should wish him happy birthday or just let it go? will that hurt him if I don't wish him? how do you guys feel if your ex did not wish you on your birthday even when you are dating a new girl? do you still care for your ex ? or you just don't want to hear from them at all either be it your birthday or some special occasion?
Guys, does it hurt if your ex girlfriend did not wish you happy birthday?
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