Most Helpful Guy
One of the most important lessons you need to learn about relationships is this:
You cannot change other people, you can only change YOURSELF (and this includes changing who you associate with).
You can ASK him to commit to you, you can even give him incentives to commit to you (such as: no sex until you do), but you cannot MAKE him commit to you.
If a commitment is what you want, it is your job to find a guy who wants the same thing. You don't get to find a guy you like and then try to change his mind into committing - that simply won't work.
Relationships are about much more than attraction - you also must be COMPATIBLE, and it's your job to get to know a guy early in your relationship with him and determine if the two of you are compatible - and if you aren't, you have to move on and find someone else.
Most Helpful Girl
Don't force him. If he doesn't even want to talk to you then he probably doesn't like you as much as you think. If he doesn't even like you like that he's sure as hell not gonna commit to you. You can't force a person to commit to you. If you're the one texting and he doesn't seem to want to reciprocate then stop. If he wants to talk to you he'll text.