In his late teens to early twenties he is in the process of growing and maturing as a person. If he is attractive and has a lot of options when it comes to girls, it will be a lot harder for him to simply settle down.
Show this hot guy that you are not trying too hard to make him commit.
A hot guy is probably going to be used to girls trying to make him commit.
He may be used to girls trying to get him to focus on her only.
These girls try really really hard to make that happen.
She may act in a very clingy fashion always wanting to know where he is or what he is up to. She may show jealousy whenever other girls are giving him attention and may hold onto his arm just a little tighter. She may be constantly following his social media activity.
It is important to begin more one on one interactions in the real world.
You may feel like you like each other but you don’t really know what your chemistry is going to be like when you interact in this kind of setting.
You shouldn’t delay this process by keeping communication relegated to quick five minute discussions as you pass by each other or discussions over social media or by phone.
You really need to start interacting with each other in a dating atmosphere.
Even though you like this person, you may not want a relationship with them because you may believe that you are just not of the frame of mind to take on the challenge.
Perhaps you had a previous relationship that didn’t work out and you are worried about repeating the same mistakes.
At the point where you are both really comfortable with each other and probably have several mutual experiences that have been shared.
It really depends on the kind of guy you are dealing with and oftentimes what stage he is in his life.
Show this hot guy that you are not trying too hard to make him commit.
Go out together on a date.
Even though you like this person, you may not 
He may not see you as his girlfriend at this time.
If he has told you that it is not a serious relationship, he has told you what he feels.
Normally, “being in a relationship” is more solid.
Most girls may be worried that