Me and my girlfriend have been seeing each other for around 3 months now. She's a really nice girl but there is something always on my mind about trusting her. She has a few ex's who she wants to keep as friends, which I woudnt normally mind but the way she talks to them is on a flirting level. She will ignore me if she see's one whilst we are out in town to talk to them. Once I was left alone for 20 minutes. She had asked me to come out with her than did that.
Another thing is this guy she was seeing for a month or so, they went their own ways and she slept with his best mate on his fishing about. This was only 6 months or less before we got together. Well the exx's bet friend had been constantly calling and texting her until she finally answered the phone and spoke to him telling him she has a new boyfriend and all the rest about work. He then sent her a text 3 weeks after that asking when they were "going fishing next?" which I didn't like and she told me that it was a joke between the ex and the ex's best friend about it meaning "when are we goin to have sex again?" I told her I didn't want her talking to him cause it was disrespectful to me an her. I then caught her txting him one night soon after then deleteing the messages she sent to him!
We had a huge fight about this and she said there wasn't anything bad in the messages, but why she deleted them I don't know. This is just one time of many suspiscious and untrustworthy acts.
She is also on and off between being rude and a *****, and being sweet nice and caring?? Evrn HER friends don't jnderstand why she is doing these things...

Can anyone give me advice??

Break up with her. She's cheating on you. And even if she wasn't, she sounds like a manic ***** who makes you feel like **** all the time. Don't even bother with people like that, just move on to a good one.

Maybe is time to open you eyes. Might hurt but I think trying to find someone else it'll be the best.
Im sorry . Love blinds us sometimes ;/ xx

If she deleted the messages without showing you then she HAS got something to hide, I too have often texted male friends and my boyfriend would snoop in my phone and find that they were completely innocent texts, otherwise I would have deleted them! But I don't because I know that it will lead to a fight plus I don't have anything to hide, people that act shady are usually hiding something, there is no reason for her to keep in touch with the ex's best friend, he's not a good friend of hers so to cut contact shouldn't be a problem for her, but it is! Its taken you only 3months to figure out that she not trustworthy, at least it wasn't 3 years, move on, if your relationship is full of anxiety and paranoia then its not worth it, espeically when it's the "honey moon" stage, there ARE people out there you CAN trust so waste your time with someone you can't, :)

Relationships are based on trust, but it doesn't appear that there can be any trust in your relationship.

You've told her that it bothers you, but she still sneaks around and texts anyway, which means she really doesn't care if it bothers you or not. When someone hides things and lies, they are definitely up to no good.

You definitely need to rethink this relationship, unless you want to live with frustration and heartbreak.