Lack of interest from a guy?

Hi guys! I have been seeing this guy for 4 months, our dates are great and he uses to initiate contact most of the times and proposes dates. Lately he has been taking a bit longer to respond to my texts. After dates, we usually text each other when we get home. On Friday we saw each other and we had a great date. However, he dropped me at my house and didn’t text he when he got home. Now it’s been three days (it’s Monday) and he hasn’t texted. Should I be worried? When he reaches out (if he does) should I answer to his text or do I take this as a hint he is not interested and ignore? Other guys I have dated in the past were texting me consistently every day, especially after a date and I this is making me feel like I am unimportant to him. What are your thoughts? Thanks.

Lack of interest from a guy?
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