I'm still in love with my ex-girlfriend.
We were friends before we dated and did everything together. We talked and texted every day. I knew she had baggage: Her ex-boyfriend was an ass and treated her very badly. I was fine staying friends -- I just enjoyed spending time with her.
Eventually, things evolved between us and we started to date. Everything was perfect: I even met her teenaged son and really got along with him. She told him, and her mother, about us -- which she'd never done before with anyone else. Her son approved of me and said she deserved to be happy.
She had a hard life, and needed to have joy for once.
After we were together for a couple of months, I called one day and she sounded depressed on the phone. I asked her what was wrong, but she wouldn't tell me. After we hung up, she texted to say she was still in love with her ex and couldn't see me anymore.