Why do you ask a Vietnam immigration related question on a Thailand group? There are a few FB Vietnam dedicated only to visa questions. That said, there's a cottage industry targeting tens of thousands of expats living in Hanoi and Ho Chi Minh who do regular border runs. I wouldn't worry.
If you're talking about obtaining a visa for the country of his or her spouse, it depends, as immigration policies vary greatly. Sometimes, it's actually more difficult to obtain a visa if the person is married to a national of the desired country to visit.
Just wait… 2 months is nothing. The number of batshit things I’ve experienced or witnessed in my 20 years of visiting or living in Thailand is insane. Yet, it’s lovely and beautiful, and most people are very accommodating, and I love the place. I too travel by bike and have crisscrossed Thailand a few times, and experienced several wonderful episodes similar to yours. Just a friendly suggestion to remain attentive. Btw, massage girls love ALL the men. Best of luck.