Why would you stop progressing? If a girl is laying down making out with you in your van, she knows the deal. Lmr is something to be shot down, not accepted. What you basically did was justify her resistance. Then u justified it even more by bringing it up. The last thing you wanna do is remind her she stopped ish. You could've framed the convo in a much better way. Don't bring up her not fucking you. Instead be sexy n flirtatious. Don't say "I can't believe we almost had sex!". You should believe you ARE going to have sex. Act like it. Use ":-p n

" faces. Don't bring up the almost having sex, just be fun n flirty n act like nothing happened. You could be like "had fun the other night, let's go to x club at y time n have some more

". Don't act like u got shot down or something, just act like its all normal. She may feel like omg how did that happen?...that's a good thing. It means you are doing your job well. Alot of times after a girl Fucks you she will be like wow I can't believe we did that n laugh. Just smile n give her a kiss. Also, don't think about push/pull techniques while in the moment. Just go n create passion. When u r kissing her move away a little n let her come to you. Then grab her hair, give it a little tug n jump in. While your making out push/pull is very subtle in my opinion. Its more about little teasing moments, followed by intense passionate moments. Not completely stopping, then starting again.
Hope this helps buddy. Post your results.