Would it be weird to tell him happy birthday or just say hey?

There’s this guy i used to talk to but we stopped talking due to a fall out & he took me on dates & stuff & was so sweet. Anyway, it’s been a couple of months & I want to reach out to him & try again by either telling him happy birthday on snapchat since it notifies people that it’s someone’s birthday or just text him “hey” tomorrow which is weeks before his birthday. I don’t want to seem weird or stalker like i was thinking about him hard or eating for it to be his birthday lol i dont know.
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Thanks everyone! i think the happy birthday is good too. Also i wasn’t going to just say hey with the other choice. Anyway me and him fell out because he was jealous of seeing me with somebody from school and we got into an a bad argument but he’s added me back so i think we’ll be fine. i already reached out to him back then about 3 months after the incident so im not scared life is too short lol. but things were still kind of fresh so we just had nice small now months have passed so im trying
Would it be weird to tell him happy birthday or just say hey?
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