Talking to a guy

madison
I've been talking to this guy for about 4-5 months and I'm catching feels so bad. I can't help it!! He goes to a different school though but I'm so worried that's he's talking to other girls (I've heard he's been a fuck boy in the past) Should I care if he's talking to other girls since we're not even dating? Or should stop worrying? I'd understand if he flirts with other girls cause I flirt with other boys but it still drives me crazy. He says he's cares about me and the I'm important to him and that he likes me a lot but is that just what fuck boys say? Idk please helpppppp