Should I just stop trying? should I just let it go? am I wasting my time?

So me and this man I met on a dating site it had been about almost two weeks. We have went on plenty dates. I have met his son , some of his family. He has met my daughter. So I spent the night with him for two days. He dropped me off this morning I texted him at 1pm checking on him I was dropped off at 8am. He texted me back at 5pm. I texted him back maybe 20 mins later and again about 930 a pic of me at work. Not one response tonight.
Should I just stop trying? should I just let it go? am I wasting my time?
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