My (23f) cousin (27f)told me that she was having sex with my boyfriend(25m), who died last year. ( while we were together).

Almost one year ago, i lost the man I considered the love of my life ( we were together since I was 19). He died in an accident and this was so unexpected. It was tragic and I went into depression. He was the man I wanted call my husband , and have a family with. There were so many things we wanted to experience together. I just couldn’t deal with it and the pain was very strong.

Thankfully, i had a few people who were there for me. I also went to therapy, and it really helped me. It still hurts a lot but I’m doing my best to get better.

The thing is that, I have this cousin who I see from time to time, but don’t really get along with. She only contact me when she needs me to help her. She used to have, still has a lot of issues and trouble . so, I used to feel a bit bad about her and try to help her a bit

Two days ago, she called me, because she wanted to know, if I could take care of her kids ( she’s a single mother of two) for a few hours. I told her that I couldn’t because I had to study for some exam. She started to get mad , go on a rant, and told me that i was being a bitch, that I was lying, things as such). I told her I was done with her and her insults. I was about to hang up. But that’s when she told me : just so you know, I was fucking with ( my late boyfriend’s name ), for 3 months and that, until the day he died. I just couldn’t believe it, I was in disbelief, completely shocked, but didn’t know if it was true or not. I told her to shut up, that it was all lies, that she needed to take her medication and hung up on her.

I started to cry. I was in so shocked, I wasn’t ready for it. I know she has some bipolar issues, but I also know for sure she had sex with plenty married and taken men, as well, in her past.

I’m so confused, I just have a naked time believing my bf would have been able to do that. He didn’t even like her and she didn’t like him either. I don’t think she was his type and he told me she was bringing too much drama. If it’s true, I never saw or noticed anything. I can’t believe it, but it put some doubts in my mind. I’m feeling lost and confused now

Is she lying ? Did she invent this because she wanted to be mean and hurt me ? I just don’t know what to think.