I have a head canon in the older years Cream is a very attractive woman that is often hit on by many guys and the guys are always shocked to find that Tails is her boyfriend because they view him as a nerd. So they would pick on him and try to get up with Cream anyway. Kinda like the Krillin and Android 18 thing, both canon and TFS. Here we have a random male bear flirting with Cream and calling Tails a geek with Tails being angry and gonna get ready to beat the crap out of him.