It depends if he was all: "Heeey, babyyy!! I was just callin ta see if wewe are doin' good, wewe know, cause I needs me some money."jk or: "Hey, (name), I was just calling to see how wewe were."
Either way, it shows that he cares for wewe and even if wewe dont get back together, he still will. wewe make the decision. wewe know he cares, do wewe want to be zaidi than just friends? What is the first answer that pops in your head that your concience doesnt question?