Should I be concerned or they just be playing games with me?

So at my job I come across few man they are all married I’m the single one, anyways there are two guys both are married with kids, from day one one of them guys kinda was too friendly with me and maybe showed a little interest bc his friend was walking One time and calls him out and says hey are you bothering her ( referring to me) there are many more situations anyways, yesterday I was having a conversation with the friend of the guy (both coworkers), he starts mentioning how maybe him being rude to you (me) means he likes you than he goes well he found out that you have talking to a guy I was like okay? He goes you don’t think he got to him I was like his married why should it concern him so speaking of this do y'all think his friend is just messing around or he being serious bc this conversation is getting weird

Should I be concerned or they just be playing games with me?
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