I need advice please

For some reason, my brain gets upset when my boyfriend hangs out with other people. I know I shouldn’t feel this way, but sometimes I can’t help it. I understand that he has a life outside of our relationship, and that’s great. He reassures me all the time, in fact, he often tells me he would rather spend time with me than with his friends. He’s a perfect partner, and I love him more than anything. However, I don’t want this to become an issue in our relationship. I know why my mind thinks this way, even though I don’t believe it to be true. My brain keeps telling me that he would rather be somewhere else than with me. Those words repeat in my head every time he’s out with friends, and I don’t know why. I want to find a solution to this obsessive and jealous thought so that I don’t ruin his time with friends. I really need help with this issue.❤️

For about a month now I’ve been really obsessed with the idea that my girlfriend has feelings for this guy we know if he has feelings for her. We’ve only known him for about a month and we’re not that close to him. The stuff that makes me worried is completely normal for friends to do or are things that aren’t real. . They respond to each other on group chats . They hangout in groups when I’m not there . She finds him funny and smiles when she’s around him . I just have a bad feeling It’s become such a thing in my mind and it’s deteriorating our relationship. Every time I see him and her talk I feel mad and sick and anxious. And now I’m starting to hate him. I feel like I’m being so unfair because she hasn’t actually done anything, and I keep accusing her and treating her like she has. She says she feels like all I see is the worst in her and like she’s a bad person. I’ve brought this up to her many times and every time she tells me she would never cheat on me and that he’s some random guy and that she doesn’t want him she wants me. I just can’t get the idea out of my head, I can’t stop unconsciously looking for signs of romantic feelings between them. I analyse her body language or how she looks at him, I check if there online at the same time to see if their texting or something. It’s really bad. It’s gotten to the point where it’s not about the idea that they have feeings anymore it’s more just I want to get the idea out my head. I want to stop seeing this. Because she would have said something by now. And I know this is coming from a place of fear and insecurity about myself and the way she feels about me, because he’s no different to any of her other friends I just chose him to be the one I worry about. I want to get past this because our relationship needs to move past this and I want to be able to enjoy the time I spend with my friends instead of relating it to this and the idea of hanging out in this group with her where he is, and if causing instant anxiety. She’s not like this, she’s a good person. It’s not necessarily the idea she’ll actually cheat it’s the idea she’ll develop feeling or he will and will make her catch feelings too. It’s all just a “bad feeling” I have and an obsession with this idea. I can’t stand to be around them in a group cuz all I can see is that “she’s in love with him” or “he would make her or does make her happier”

I'm worried I'm gonna get hurt. There is a guy I'm talking to and we plan to hangout soon. We have been talking for awhile and have talked at school. I have a few ex boyfriends, two to be exact. One turned out to be awful, but I found out early on because a bunch of women came to me with their concerns of how he creeper them out and used to send them weird messages, he also for awhile would have people message me to get me BACK MONTHS LATER. My other ex was a good guy, but extremely shy and bad with expressing feelings. It didn't feel like I was his girlfriend. That being said I now kinda assume (mainly from the awful guy) that everyone is gonna turn out to be awful and that I can't trust my judgement. This guy I got now knew stuff about ocd already, loves horror movies and art like me, loves cat, good with kids and has a little brother, he remembers little things I say and sends me pretty pictures of the sky and forests when he is out, he warns me when he is sleepy incase he falls asleep when we are texting at night, he knows alot about mental health. He is everything I could want and I just can't believe it's real, that someone like this exists and out of all people LIKES ME. My brain is telling me he could secretly be racist or homophonic or a rapist and I just don't know. My friend who barely knows him and has never spoken to him before but is good at reading people says he is 9 out of 10 percent sure he isn't any of those things. which considering they have never talked or anything it's good. But idk I don't trust myself. I'm scared he will crush my heart. I went through his following on insta to look for people of other races and sexualitys. He follows a girl who is a friend of a friend of mine who is gay, the smosh account and Ian Hecox, he follows Good Mythical Morning and Link (idk why not rhett), and I once joked that I was better then him and he said we are all equal and has said things like he doesn't Haye anyone we were all babies once and stuff like that. I wanna trust my self and my friend but idk.