<human>: Can you condense the text into three sentences or less?

I'm seriously depressed. We were almost a family, and she took off with no regrets. She's living life, going to party, knowing new people all the time, and I can't even focus on the basic things I need to do for myself.

I've been considering going on psychological treatment. I think this isn't normal. We had such a nice relationship, with ups and downs, we were so close and confident. And now I may have idealized her due to this situation, making her perfect in my mind when I seriously know she isn't.

I feel lost, alone, uncomprehended, rejected. How can in the world somebody take off like that? I keep replaying this in my mind and can't see other way around it.

I genuinely was the 'supportive' part of the relationship. Without my care and good will, we would have broken up several months or years before. Why must I suffer the most, when I put every ounce of myself on this, and she mistreated me so many times?

I've lost faith in life. I know for sure life is the most unfair thing in the universe. But does it pay off? Will I ever be ok again? Despite all the shit she did, I miss her so much, I need her support and care. This pain is consuming me. When will it end?
<bot>: Feeling devastated. The relationship kept going because of me. She did a lot of shit an disrespected me. Why must I suffer the most? I can't keep on going.