Without you girlfriend translates as Ohne Dich Freundin.
Freundin girlfriend
Sorry, I have a girlfriend = Es tut mir Leid, ich habe eine Freundin
Nothing. He has a girlfriend. He did not say he wanted to go out with you, he said he likes you. You can like someone without wanting to go with them.
Just say hello. You might be surprised at how much you can say without talking.
A "weenie" when referring to the sausage it is a "Winer Wüsrtchen"A"weenie" when referring to your girlfriend it is "Süßer"
You mean alot to me in i dont know where i woukd be without you in my life
Du bist die allerbeste Freundin, die ich je kennengelernt habe.
German equivalent would be "Kathrin" or "Katrin" (without the "h")
Google translator lists it as... 'nicht schlecht auf der Suche nach einer Freundin'
Ich kann ohne Dich nicht leben
At a guess (without any evidence to go on) you have offended her somehow.
What Iyaz is trying to say is he doesn't want to do something solo. (Without his girlfriend!)