I'm not entirely sure what a "blocked" call is; I'm guessing it's when a caller's number doesn't show up on caller ID but, later, when one gets a phone bill, the number is on there.

I don't have caller ID, just answer the phone when it rings and deal with whomever is on the phone. I don't care who my husband talks to when he calls/is called by someone, anymore than I care about what websites he visits.

That being so, if I were in your position, I would try to put all the information I had together so it makes positive sense to me rather than negative. I would deliberately put a "happy" spin on things until reality made it impossible to do that anymore.

A phone call is a phone call. If I told my husband I didn't want some woman calling him anymore and he said he had told the woman not to call, I would believe him, flat out. If I saw blocked numbers then appearing, that they were the "same time" each day, would be a clue that they are probably not from the same woman; as that woman, if my husband lied to me/was still talking to her, would be clued to "not call the same time but mix it up so he doesn't notice". But, if I were still not convinced by that thought, thought perhaps they were "stupid" and still carrying on at the same time, I would answer one/several/all of the calls!

Test your paranoid thoughts with something reality-based. They can't stand that!