What is the worst mistake you have made in a relationship?

My worst mistake was making my husband doubt his trust in me. We married young and had a baby right after we got married. Things were very stressful. He wasn't one to show much attention or affection and I got lonely. We were renting his mother's house and things were tense. I started talking to this guy by coincidence and he kept my attention unlike most people I had met on the internet. On my end it was all talk. It was just nice to have someone pay attention to me and ask how my day was. I guess I kind of led him on because i had no intention on actually meeting him. well anyways my husband found out and it upset him. I cut off all contact and never have done anything like that again but i feel bad because i'm sure it is still in the back of my husbands mind.

I think my worst "mistake" (if you can call it that) has been being very jealous. My husband has given me no reason to be this way, it's just the way I've become for some reason. Thankfully, it hasn't ruined our relationship or driven him away (yet!) but I know that I need to get it under control & I am trying to, before I do drive him away. He's told me a few times that it drives him nuts how jealous I am, and I try not to be. I don't know why I am this way. When we first started dating I wasn't at all, and for some reason it's just been progressing over the past few years.

I too believe that both parties have to work at a relationship to make it work. Once bitterness has crept in, it is very difficult to straighten things out. It is bound to get worse and worse with each passing day. The mistrust increases, unless you accept it and are willing to ignore it for the sake of harmony.

I think the worst mistake I ever made in a relationship was in thinking that if he had an affair on me and hurt me (which he did) then I could and should have a affair on him and hurt him right back (which I did), but it was a BIG mistake, I only hurt myself worse, my own self-esteem, my own self-respect, and the relationship ended anyway because of what we both did.

i think the worst mistake that i did all over is that i think and expect things would last forever when i should just live a moment and its because i realized the more expectations you have the more anxiety comes along in the relationship.