HookupDate is not a dating platform. You cannot communicate one-on-one with other site users; thus, it may not be possible for you to block another user on this site. However, the platforms that HookupDate refers to give instructions on how you can block someone. Different sites use different approaches but consider that this function is accessible in the settings panel. For example, instead of blocking someone, you may choose to unmatch them, which sounds kinder than blocking.