My mum's attitude towards who I date is so negative and it's horrible?

Your mom is a bit bitter because she's been single forever, but also because she's your mom. She worries about your safety because she loves you. It's why she asks you what you'd do in certain scenarios. I know it's annoying. And yes, she's going about it the wrong way, but I'm guessing you want some peace. If you're interested in getting peace... this is how. Let her meet him and get to know him. When she asks what you do do in certain situations... tell her. It's annoying, but she just wants to be sure you'd be safe and know what to do if something happened. Once you settle her fears she'll stop asking. The same thing works for friends not just dates. When she starts going on about how she thinks they should do certain things and if she were them that's what she'd do.... Tell her, you appreciate your advice, but you don't need it at the moment... that you're just telling her things to vent or to let her know what's going on. What would really help is to ask her what she'd do in certain situations and what it was like for her at your age. It would strengthen your bond and become a more positive one if you do this. You cannot control how she reacts, but you reacting with negativity and annoyance just escalates things and makes things worse then they need to be. I'm not saying she's right. I'm just saying it's easier if you understood where she was coming from and reacting to it more positively.. because ultimately mothers just have one objective... to make sure you're safe. I imagine she doesn't want you to end up single for 21 years. I imagine she wants you to find a good man and be happy. You mention you didn't pick the right guys in the past and that could be a serious worry for her. You deserve to be treated better and she wants to see that happen.. and more importantly if you're not treated right she wants to know that you will get out right away.