So let me get this straight: you go ghost on a woman for weeks and then decide to randomly hit her up... and the first thing you offer is for her to come over???
Translation in her head:
"Hmm, he hasn't contacted me in a few weeks, so he must be either seeing someone else or banging someone else. Now that it hasn't worked out, he wants to hit me up so he can get sex from me, his 'leftover' that he couldn't even take out anyplace for the last few weeks? What am I, just a sex doll to him?? No waaaaay I'm going over to his place without a proper date first!"
And frankly, she has every right to feel that way. Even if your only intent is to have her over to bed her, you don't have that be the first thing you suggest after a long absence. No - instead, you hit her up and say "Hey, sorry it's been a while, I've been really busy. Let's meet up someplace and catch up." By meeting with her IN PUBLIC, she won't get the feeling you're just meeting up for the sex... which, ironically, will allow you to get her back to your place a lot easier after some catch-up conversation.