Lurker from trp and asktrp for a while and I need some advice from some others.

21 year old in college. Have been talking to a plate since the beginning of the semester on and off. I've gotten her back to my place multiple times. I'll bring her over to "watch" a movie and she is more than happy to come over. As you could imagine, things start to heat up and as soon as I put my hands over her pants she gives me a number of excuses as to why she doesn't want to go any further. The list is as follows: "Not yet", "No we are watching a movie" as she squirms away and rolls over, "we haven't hung out in a long time, there is no way we are doing anything tonight", etc. I tried going back to making out and escalating again, rinse, wash, repeat but as you can guess that hasn't worked. Also tried completely disconnecting any physical contact but that doesn't bother her. And also have tried pushing through the LMR but her body language isn't to receptive when I try this. Do you guys have any tips or critiquing I could use? The sexual tension is there I just can't break through it.