Most Helpful Guy
HI, though you seem to have send that he rarely or late text back to you, do you know his hobbies? like except for work what he does after? Maybe you can make some interesting conversations like what he likes doing or what he likes talking about. most relationships you have to make an effort and hope the the opposite will also make the same approach. So my opinion is to find what you both have in common and have a conversation on that! However if you feel that he isn't making much of an effort the other possibilities would be work related, he isn't ready for a new relationship or something else.
Make sure you give some thoughts before you text to him though. Good Luck!
Most Helpful Girl
That's just how some people are! My boyfriend of 5 months sometimes doesn't text me but I will still text him "good morning babe" or something like that no matter what we always say good morning. We carry on a conversation but neither of us rush to text back but not because we don't want to we are just busy and we see eachother 5 nights a week so our relationship isn't dependent on it. As long as you guys see eachother often you don't need to keep in constant contact. And remember never compare past and present relationships everyone is different. Also you can say something like I love when I see a text from you in the morning when he does it next time.