Travel Bahrain via CauseWay/Multiple Visit Visa/Bahrain Dependent Visa

A person who as Multiple 1 Year Visit Visa of Saudi wants to travel to Bahrain via Causeway who has valid dependent visa of Bahrain. Is it possible..?
Lets Say if Visit Visa of Saudi is not extended while staying in Bahrain. Visa Date lets assume Jan 2020, which has to be extended by March 2020, If Traveled to Bahrain in Mid of March and did not extend the Visit Visa of Saudi then can it be renewed when ever required, If that person wants to return to saudi in May 2020. Can the visa extended. As the expiry of that visa is Dec 2020 because it is 1 Year. Now for every 3 Months that individual should exit and enter Saudi to extend the visa. If exited and did not returned and want to return after some time then.
In case of Saudi Visa is not valid because no extension was done, will the new visa application can be process in May 2020 for same type of visa, But as per the records Previous visit visa is 1 Year Validity with every 3 Month Extension.
Nationality = Indian

Too long and confusing.

If I understand correctly:

Dependent visa of Bahrain will allow you to travel to Bahrain anytime.  You will exit Saudi on visit visa and enter Bahrain on dependent visa.

Saudi visit visa is valid till its expiry. You can enter and leave as you wish.  On every exit and re-entry, you will get 90 days.

Don't confuse or link the two separate visas for different countries.  You enter and exit each country on their respective visas only.