<human>: Hey Reddit, I'm currently dating the most amazing girl I've ever met. I'm also currently struggling with depression and am making some pretty big changes in my life as I'm moving on to a proper career after graduating college. It's been very difficult for me, and I'm really having a hard time keeping my spirits up. This has, unfortunately, been affecting my relationship.

The really short version is that when she and I start making out, I get turned on, and in the transition from that to sex, I lose my erection. It's to the point where I'm afraid to initiate with her, even though I really want it, because I don't know if I'll be able to stay hard long enough to make it happen and I don't want to disappoint her again. My depression is making me worry that it's something with her, that I'm not actually attracted to her, but the way being with her turns me on means that can't be true. This has been going on for about a month.

I don't want to lose her, but I also want her to be happy. I know she's not happy right now, and my depression is also making me think about breaking up with her because I think it will be better for her, even though I don't want her to leave. Because I don't know why she'd want to stay with me.

I'm seeing a therapist and doing my best to work on this, but last night I thought I was ready to have sex with her (and I was really turned on) but it happened again and now she's (understandably) very upset with me. I feel like an asshole.

Can you give me a shortened version of the text?
<bot>: My girlfriend turns me on, but I can't keep it up long enough for sex. I'm worried it's because of my depression, but she feels like it's because I'm not attracted to her.