AIO or just traumatized from dating crappy men

A little backstory, I very recently got out of an incredibly toxic relationship, and I felt mentally checked out of that relationship for several months. I decided I wasn’t going to mope around the house and be sad over somebody that treated me so awfully so I decided to download some dating apps and put myself back out there. I don’t know if I’m just traumatized from dating shitty guys my whole life, but does this seem a bit excessive to you guys? I matched with this guy on bumble a few days ago and every single day he is asking me to hang out, to bring me flowers, and then just recently he sends me this message about saying that he wants to marry me. Just to remind you I’ve never even met this guy. We planned a date for next Saturday and he has asked me every day since to hang out, multiple times a day, after I’ve told him I’m busy with work and my daughter several times. I’ve also told him several times that he is overwhelming me and to calm down a little bit, and if I have free time, I will definitely hang out with him and he apologizes and then within an hour or two he asks again, or he starts calling me. He started immediately calling me babe/ baby and getting so attached/ emotional. It’s really creeping me out honestly. I’m not sure if he’s just a nice guy and I’m turned off by this because I’m used to assholes or if this is concerning behavior.