Tell your boyfriend never to be philandering outside, and at the same time let your boyfriend concentrate on this relationship, because although your boyfriend is better, since he chose to be with you, it means that you are also an excellent, optimistic and positive girl, so you deserve your boyfriend completely, and you don't have to be too afraid. Other girls will pursue your boyfriend because you are willing to run this relationship and your boyfriend is sure.
At the same time, you should create a little romance for your feelings when your feelings are stable, because you actually want to keep men and let their feelings develop for a long time. After that, there will be all kinds of barriers, leading to the running-in period. This running-in period will make you two find that this relationship is still meaningful, and you two are willing to work harder to develop this relationship, which is better.
So as long as you two still have love and you are willing to continue to work hard for this relationship, then you don't have to be too afraid of other girls pursuing your boyfriend, because you think it's normal that there may be other girls pursuing your boyfriend and other boys pursuing you. As long as you are willing to settle down with your boyfriend, then your boyfriend will certainly understand you and be willing to pay for this relationship.