i have been in a relationship for 8 years. because of something that happened in the past i have become so extremely insecure and jealous that i am miserable. i'm wondering if the relationship is worth all the stress it brings me. i love her deeply and want to spend the rest of my life with her and she says the same all the time. she recently got a cellphone and carries it with her even if she just goes to the bathroom. makes me feel like she's got something to hide. when it rings or she gets a text my anxiety goes through the roof! i hate it! how do i deal with these feelings that are tearing me apart. they add to my already almost unbearable depression. we've talked about this before and she assures me i'm worrying for nothing but my mind won't stop. it's unrelentless! how can i overcome this? should i or we go to therapy? any an all advice is welcome. please help!