The OP has a multiple entry Non-O visa based on marriage to a Thai national purchased in HCMC (
@Juan *********
, am I correct).
He has three options:
1. Border bounce. At every bounce he gets a 90 day stamp. He can bounce in and out of Thailand every day if he wants. He can't do that right now.
2. Get an extension of stay based on visiting family. This extension of stay is good for 60 days, does not require finances. He may be able to get it once on the visa, or once for each entry stamp, depending on the immigration office.
3. Get an extension of stay based on supporting a Thai wife. This is good for one year, requires 40K THB of income a month or 400K THB in savings, and requires doing the 90 day reports.