Is it possible for a womanizer to get jealous?

1) I'm NOT dealing with a womanizer. I'm just single and curious

Do womanziers/bad boys get jealous when a girl is talking to another man (flirting, etc) I guess a girl he has his eye on or a girl he's dating

2) what are body langauge signs or actions he's jealous
Is it possible for a womanizer to get jealous?
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