I'll only ask a girl out if i really like her
I usually only ask a girl out, or even get her number, if I really like her and I could picture being in a relationship with her. It seems like most guys pursue pretty much any girl if she's attractive enough, maybe because they just want to get laid, or until something better comes along, or it's just their default modus operandi.
But usually before I ask a girl out or get her number I imagine what it would be like going out with her, being in a relationship with her, even breaking up with her, and if it seems like I wouldn't really be into her, or we don't have much in common, I won't even ask her out.
Or sometimes I'll get a girl's number, but because I wasn't REALLY into her, I won't ever call her. It won't even cross my mind, I'll just forget. Is this normal?