He’s 10 years older then me

Hey friends I need a lil help I just started talking to this guy I’m 20 and he’s 30 I hang out with older people and I was chilling with some girls at a party and some girl said “ does anyone know this guy he keeps hitting me up” she’s 27 , and it’s the same guy I’m talking to, he says all these sweet things and he’s actually seems like a gentleman I’m not use to it cause I’m use to dating guys who are my age and they all be playing hahaha , He tells me he only has a few friends and stuff and that’s he’s really into me and he asks me all these questions like at I Family orientated but We are not in a relationship but we been talking, Should i care if he messages other girls? Well it’s a bit weird for me ever since that one girl at the party was talking about him DMing her, when she said it I just stayed quiet and listen to what she had to say and it wasn’t much, I’m thinking I’m not the only one he talks to, should I stop wasting my time? I just have this weird gut feeling about him, I really wanna be in a relationship but I want something real and Loyal and loving cause that’s how I was raised to be I don’t want no bullshit should I just move on and find the next?