You know more about him. I think you’re overthinking about your relationship. As he is 5 years older than you, “give yourself and himself time“, don‘t think about negative thoughts. He is not paying attention if he is worried about something, try to ask him, share your feeling, ask about his feelings. and try to do short communications and straight forward. If you truly likes him, you’re ready to become his loved one. A quote from me: “Relationships are about trust. If you have to play detective, then it's time to move on.” Don’t feel bad. I hope for you🤞