What do u all think

After getting into a new relationship my now boyfriend was told by me that he has to cut this female friend off who likes him. We blocked her number and a day or 2 ago she tried messaging him from another phone. I checked his phone to see that he didn’t respond. He would like for me to trust him but I’m just concerned that she will keep trying because he suddenly stopped talking to her and let me block her and what not. He didn’t tell her any reasoning. Should I be concerned? Her one message said she was really hurt that he just cut her off and she was crying. He didn’t respond tho. How should I feel tho?