I think im ruining my relationship... :(

Hey, me and my girlfriend have been going out for 2 months now. The last BF she had she got bored of after 2 months, its kinda worrying. Every little thing she does recently like go out with her single friends makes me suspicious, we dont txt as much and stuff like that. Am i being paranoid. I recently talked to her about it and it only seems to of made things worse. Help? Am i being paranoid? She has always said she likes me cause im not a soft guy, (or bad boy) whatever you call it. I wouldnt refer to myself as that, ever. But if i come out and start talking to her about this kinda stuff her impression will SURE to deminish if i start talking about this and that. What can i do?

Thanks guys/gals.