Be careful to not categorize all men. It would not surprise me if many — perhaps a majority — of the men doing this are doing it for the reasons that so many commenters propose. However, some men have a natural instinct to protect women, or help them. I know that I do. The fact that you recently had a divorce — something that is known to be a heart wrenching and depleting experience — might be the reason that some are reaching out, checking in on you.