So, I have been getting some weird signals from my coworker lately. I should start by saying that both of us are in relationships. He's been sending texts which isn't a big deal, but sometimes he adds XOXO, 😍, and 😘. He also has brought me a bag of chocolate before after joking with him about owing me chocolate after a hard day. What also made me question this is how he was yesterday. We were celebrating a birthday and he playfully got icing all over my hand with one of the decorations from the cake. Am I just looking too much into this or is he flirting with me?

Edit: He has also called me cupcake and peaches in the past.