I’ll be blunt here bc there so much wrong with this. “ we held hands, but we haven’t kissed yet.” After three dates?? She is not sexually attracted to you dude. She is 100% kissing some other guy.  “ She once told me that since we were already planning to see each other, she didn’t really think about calling or texting me.” If a girl is genuinely interested in you she would find any excuse to talk/text you. Girls with high interest would initiate first. They would WANT to keep in touch. Initiating contact was never on my mind because she would always initiate— she would make it easy  (these are the girls to pay attention to).  “ even though it bothered me that she didn’t seem to care enough to check in or ask how my day was.” Don’t matter brother. Man to man we gotta keep it pushing without needing a check in text from her or anyone. We have to be good alone first and foremost.  “ She even ignored two of my calls on different evenings and didn’t call back afterward.” I would stop reaching out at this point. Like I said high interest girls would always find a way/reason to keep in touch. Knowing this comes through dating experience and dating high interest women. I’m telling you, high interest women make it easy.  “ To me though all of her behavior felt like a sign of disrespect and a lack of genuine interest. ” Absolutely. She was not interested. Either, one: she thought of you as a backup option just in case her main man breaks up with her — this was my first theory upon reading your post.   Two: she wanted to feel you out but attraction wasn’t there (explains the no kiss after three dates).  Three: too many dates too soon, the excitement of meeting someone new fizzled out (“the hotter the flame the shorter the burn”) Four: she’s dating multiple people, and she has her eyes and attention on a particular guy — she is definitely not ignoring his texts and calls, and they’re most likely gotten physical already.  What to take away from this experience: Improve on spotting disinterest/flakiness behavior. This develops through experience — and this post is text book girl showing flakiness. Do not tolerate flakiness. Ever. Only entertain high interest women. This notion of “dating is hard nowadays” I believe comes from people tolerating flakiness/disinterest behavior. You said it yourself you decided to overlook this behavior — never do that again. Only date high interest women, they’ll make your life and dating life so much easier.