Did he lose romantic interest or is he just a friend? [Reposted for more details]

When a guy doesn't text you back for a week bc he was busy then calls you. Is he just a friend or did he lose romantic interest? | Update: We are attracted to each other but I just got out of a relationship a month ago. After I told him that I just got out of a relationship and thought it would generally be wise for me to hold on dating, he gradually stopped calling me and texting me everyday. Then we were texting every other day, then once every few days, then he didn't respond to my text for a week then called me. It's a bit tricky to navigate because we both work in the same workplace