why so jealous?

When I see Jenna being friendly with other guys -- how do I even know if that's flirting or not? fucking can't read people worth shit -- I get so jealous that my skin burns.

I want to solve that problem. She's not mine; she likes some people more than others; some people will like me more than she does. And I guess she doesn't feel any chemistry, which is pretty much a deal-breaker.