Why am I so scared of abandonment?

Around a month ago I got out of an almost 2 year relationship. In that time I met someone that I ended up developing a crush on and today we decided to start dating. Since earlier today, I’ve had a lot of intrusive thoughts about a variety of things, the two biggest being if I actually like this person and the if it’s too soon for me to be back in a relationship. I know I like this person and we have amazing chemistry I just want some advice on the situation.

Hi everyone, I’ve been struggling with a lot of doubts and anxiety in my relationship, and I’m not sure if it’s normal or if it might be something more like relationship anxiety or ROCD. I’m in a long-distance relationship with someone who is incredibly sweet, caring, and kind. And not to mention this is my first relationship ever. Despite knowing all of this, I often find myself overwhelmed by doubts. I constantly question whether I really love him or if I only like the idea of him. Sometimes, I worry that I’m just staying in the relationship because I don’t want to be single or because he’s the kind of person I’m supposed to be with. These thoughts feel so real, and it’s hard to shake them off, even though I don’t want them. I also tend to find “icks” or small things to criticize, and it feels like my brain is trying to push him away, even though I want to be with him. I feel guilty for having these thoughts, and it makes me overthink whether I’m being honest with myself about wanting the relationship. At times, I rely on external validation, like when people tell us we look cute together. I’m scared I might be too focused on what others think, instead of how I truly feel. I also feel guilty about small things, like not responding in the way I think I should, and I worry whether I’m capable of loving someone else. Sometimes, I feel overwhelmed by how “perfect” he is, and it makes me try to find ways to dislike him, even though I know he’s a good person. I also feel nervous about things like meeting his parents or not fully enjoying his sense of humor, which adds to my overthinking. I want to be with him, but I’m stuck in this cycle of doubt and overanalyzing my feelings. I just want these thoughts and anxieties to go away. Has anyone experienced anything like this? Could this be a sign of relationship anxiety or something more? Any advice or insights would be really appreciated.

I’m confused. I think I’ve gotten progressively more boy crazy and more of a hopeless romantic, but I’ve completely manipulated myself into thinking that boys just don’t like me and I think it’s a fact. In the past, I was confused and lost on what my sexuality was so I would be in a lot of “flirty” friendships thinking that I genuinely liked my female friends I had these friendships with but that was far from the truth. I can’t imagine myself being with a woman but for some reason it’s just easier for me to talk and flirt with them. I have trauma involving why I brainwashed myself into thinking that I’m a magnet that repels boys from me and I still think that and it’s ruining my brain. (I have a crush on this guy and texted him for the first time, he never replied!!!) which honestly proves my point even more. Am I right or is just all in my head? Some advice please!!