For context, I was texting this guy I like (he said he likes me too). Recently we've been on bad terms a (he's been a bit cold towards me) and I had a little outburst at him and he didn't even open the messages. I then told him that's it's a shame that I find him kinda attractive and then he decides to open it. He replied with 'I didn't know that u thought I looked good.' I then apologised a day later for the outburst and he seemed less cold and said 'nah it's ok dw about it x.' He used to send x to me when we first started texting. My female friend sends it to me to be friendly, but what does it mean from a guy in this context? Is he just being friendly, or does it mean something else?
Also, do guys just send x to every girl, or is it just to certain ones