Curious question: how come people date someone new after their ex pasted away? Like Ariana’s ex Mac Miller died and now she’s with Dalton isn’t that disrespectful?

So me and my boyfriend of 5 months broke up and I'm very sad about it, but I'm trying to move on. But it seems like nobody wants me. They either ghost me or we hangout once THAN ghost me. I need someone to date.

Basically, My best friends both remained close with my ex. Someone who completely broke me when we broke up. My friends know that. They remained friends with him, pretty close too. It’s always bothered me, even 3 years down the line because it’s something I would NEVER do to them. Ever. My best friend cancelled some plans we had, which was very unlike her. I asked why, she said she’s going on a walk with a friend. I was like fun! What friend? And she didn’t want to say, from that, I knew it was my ex. She then confirmed it to be my ex. It was clear I was annoyed. I’d had a shit day and that topped it off. She then cancelled the plan with him. I felt awful. I said no, just because I’m annoyed please don’t cancel. I said I’m not mad at you, I’m disappointed about the situation and the way things are. She was very understanding and said that she does not blame me for feeling upset about it. I asked her to please not cancel the plans because of me. She said she wanted to move it to another date anyways. Am I a bad friend for feeling annoyed/uncomfortable at the fact both of my best friends are close friends with my ex? It’s been 3 years and it still makes me SO uncomfortable.

Hey, my girlfriend recently broke up with me and immediately got with a guy she had told me not to worry about. For her side of things, she hadn’t admitted to herself that she had feelings for him but then started thinking she was polyamorous since she says she has feelings for both of us. Since I’m not poly, she decided it wasn’t fair to me if she had feelings for this guy. But it really hurts since 1. I have ROCD and was terrified this would happen 2. They were flirting in front of me the other day after she had assured me she didn’t have feelings for him and 3. They had agreed to date before we had broken up, even if they only made it official afterwards. I can’t help wondering if her feelings for me were all a lie until something better came along, and since this was my first relationship it feels like I’m unlovable. Even if she says she broke up with me because she’s questioning her identity, it still feels like I’m just a side character in the love story of someone else more important and worthwhile. My OCD has really latched onto it all because it feels proven right. Any advice?