Very Sad Boyfriend (need advice ladies)

[DeltaSig]

Need some advice people,
just got into a uneasy conversation with my girlfriend. It seems like all we do is fight now at days. It all stems from her being upset with me lately because I've been questioning her alot about trust and the direction I want our relationship to go. The problem is she has a lot of guy friends who she grew up with and hangs around. I don't mind her having guy friends of course, it just seems sometimes she cares more about their feelings than mine. I just worry about her sometimes because she is such a sweet and open person who is willing to help anyone who comes along. She does a lot for charities and is very humble and non-materialistic. I love this side of her, but sometimes she is blind to the fact people can and will take advantage of you now at days. Especially when It comes to guys who are nice to her, I'm like "yeah, of course they know you have a boyfriend, but sometimes guys can be very manipulative, they'll say they just wan't to be friends but...", it just bothers me that sometimes she can't see what me and other friends of mine see when people try to use her. It doesn't help that I know how her attitude is and that she has a stalker in jail...and another guy that goes to her college. Lately I'll admit that I've had the jealous bug, but I just worry about her alot . She says things are falling apart because of how I'm acting, but I've honestly never felt this way about a girl before because usually I wouldn't even care. She also says that I don't give her much attention and sometimes I get condescending with her...Maybe I'm screwing things up...It's not like I don't trust her, but all the previous statements make me a bit insecure

a very discouraged boyfriend