Dream about protecting someone?

[YoursTruly]

i was in the library and i suddenly see this girl( who happens to be someone i care for deeply) storms in and heads for the table behind me. The table was full of guys, she goes up to them and she says" you've lost my phone?!" One of the guys says"no" and then she gets upset says" give me back my phone! it only has a few sentences in the messages anyway! The group of guys start making fun of her and when i looked at her face she looked sad and hopeless.And then one of the guys was like if you really want your phone, come and get me" and this seriously pisses me off.Once he gets near my table, i get up and grab him and flip him over to smack him down to the ground.Once i got him down to the ground, with my knee i started to choke him and telling him"You better give her back her phone" i also told him "i have anger issues so don't think i wouldn't do anything to hurt you" okay this is the weird part of the dream, she suddenly jumps on top of my back while choking the guy.She doesn't try to stop me or anything, its like she was giving more support to choke the guy cause she was laying on top of me while choking that guy. Oh and another thing, i do not know the guy i was protecting her from. Your thoughts and taking the time for reading this is appreciated.