my friend is really affectionate with me and i dont know if i should be scared

Hello, im 13 years old and i recently became friends with this dude who is 16, they’ve been really affectionate with me and i dont know if i should be scared. 13 and 16 would be a very questionable age gap because in the end it turns into 16 and 19, which is illegal. Ive been groomed in the past so im trying to be really cautious around older men who befriend me because ive lost trust towards them, for some background he used to make inappropriate jokes with me, i would find them
funny until they were slowly directing towards me and told him i was uncomfortable with it, he said he agreed it was weird and hasnt said anything weird like that ever since. But hes always been really affectionate with me, telling me he loves me and i love my friends too but i dont know if this is something i should be scared of??? He said hes the same with his bestfriend and that he doesnt mean anything by it but i dont know how to feel about this. He says i have a really cute voice/accent all the time and points out positive things about me, oh and he cant go 30 minutes without telling me he loves me. I like when people are more open around their friends and show some affection, like i do that too!! but i dont know how to feel about THIS because of the age gap, i need some opinions or advice, what do i do? should i be weirded out and run?? or is he just comfortable with me, i dont know. My other friend said its weird and told me i need to avoid that guy, though im not sure about it so i neeeed more opinions.