I think my girlfriend of 4 years has been cheating on me for several months now but she deny's every second of it and keeps telling me she loves only me no one else! All the signs are there like stories about where she's been that change and make no since, not giving me the normal attention she used too, spending a lot of time at her single girlfriends place where's there's constant partying and just basically acting exactly like a person does when they start seeing someone else! I haven't cheated on her but I've done my fair share, not proud of it but I know what's up! Now here's the clincher, out of the blue she calls me one day extremely angry and depressed but won't say what about, she just misses me wants to see me! When she showed up she now acts just like a person does when they've been dumped! It's now been a week or so, she's full of affection and we're back to our normal routine! I still love her very much but my feelings have changed! I see how certain friends treat me differently now like they can't believe I'm still with her but no one has proof of her cheating! I honestly feel that she was unfaithful but without proof I can't justify ending our relationship just based off of pure speculation! A woman's opinion or advise on what they think she was doing and what they think I should do would be priceless to me! Thank you for listening!