Does she also act this way around her women employees? She might just be like autistic or something. It's not too weird to be awkward with physical contact or eye contact.
If she only does this with men employees I also don't think it's too weird or something to take personally. It's quite normal for women to be more distant/reserved with men, for various reasons but among them some men read into it if we act too familiar. Or some people are just awkward around the opposite gender in general.