He has a girlfriend and I like him. Could he be interested in me?

Relationship Questions and AdviceCategory: General Dating QuestionHe has a girlfriend and I like him. Could he be interested in me?
R asked 10 months ago

So I’ve liked someone for ages now (I’d say about a year which is long for me and I’ve fancied him more than anyone else) and I finally plucked up the courage to tell him. He told me he was sorry and didn’t want me to hate him but he had a girlfriend (fairly new). I would never make a proper move while he is with her because that’s not the type of person that I am. I feel like I am getting mixed messages though. When we talk in person he seems like he could possibly be into me (I don’t know for sure) but he laughs at all my jokes, leans in when I talk and touched my hand a few times. The reason I’m not sure is because I text him something I think would be funny like carrying on a joke from when I see him directly and most commonly I get no reply but when I have it’s been extremely blunt. He can be quite introverted sometimes. I feel like if he did then he would break up with her but I know it may be a hard situation or he wants to see how things could go as it’s an early relationship. I feel like he’d also be the type of person who’d feel extremely uncomfortable breaking up with someone. I just want to know what sort of direction would be appropriate and if I should hold on or let go?
Thanks,
R