The first thing is to speak clearly with the couple to know if any attitude of yours bothers them. Jealous people see things where there are none and they exaggerate everything, so it is necessary to make everything very clear from the beginning to avoid misunderstandings.
Little scenes on the street.
If your boyfriend makes you jealous scenes on the street, you should tell him that a relationship is based on trust, and that if it continues in this way, the relationship will break down. In case you want to fight for the relationship, it’s best to seek help before it’s too late.