Coworker I'm attracted to text me, put two kisses at the end (xx) but also called me mate. How do I interpret that?

As the title says, a coworker I'm attracted to text me. Short conversation but he put two kisses (xx) at the end of all his texts but also called me "mate" (to end the conversation he said "no worries mate, see you soon xx"), is there any way to interpret that?
Coworker I'm attracted to text me, put two kisses at the end (xx) but also called me mate. How do I interpret that?
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