He says girls are his weakness?

Anonymous
Dating him ( met online) and he says Girls are his weakness. He is/has been very promiscious, had 3 relationships longest being 18 mionths shortest 2 months, hasn't cheated in these relationships. He also told me he stays in contact ( via social media etc) with girls from his past he doesn't really burn bridges with them, he dumped all 3. Is this a red flag? He is 34,.
He says girls are his weakness?
4 Opinion