How to tell him to stop texting

All right y’all so my inexperience makes it so I don’t really know how to address this issue. I’m a single mom and I live in apartment complex. There is a new man that lives downstairs he’s about 10 years older than I am and he’s very nice. I say hi to him when I go to work or if I see him when I come home from work. He is taking out my garbage and is just nice.

Well I was heading upstairs with my arms full of groceries and he asked briefly if he could have my number and possibly get to know me sometime. Stupid me I said yes here’s my number. I think I was just caught off guard between him and then all the bags in my hands. He texted me right after.

I am not really looking for a relationship right now so I basically told him that. And he said that was fine he just wants to get to know me.

He then proceeded to keep texting me like once an hour. I explained to him that I can’t answer all his text because I’m busy with school, my daughter, work etc. and reminded him I’m not seeking anything or have any time for anyone.

he said it’s fine he’ll wait for me to text him. An hour later he text me again. I finally told him I’m not interested and he asked if he could still send me a text every once in a while to make me smile. I didn’t respond. Sure enough he sent me another this morning

My issue is how do I kindly reject him without getting him potentially angry? It’s just awkward because he lives in my apartment complex and he knows where I live and my schedule since he always sees me coming and going. I just have the show “you” running through my head 😂