Welcome to Just answer !
Well you see it is a protocol adopted by most seasoned psychiatrists world over to re-start the same anti depressant drug that has worked effectively previously , so I believe your psychiatrist is doing the right thing here by re-starting you on Zoloft.
Now having said that I will agree with you that in some cases it does happen that after prolonged use of the anti depressant first time , when it is re-introduced second time it fails to provide the same effects as it provided before owing to the body's development of resistance against the drug.
But still I feel Zoloft is more likely to work for you as it has worked before and so says the conventional way of using psychotropic medications , so I will encourage you to follow your doctor's advice as he is adopting the right and most conventional method of managing your condition and usually this works for most people and so shall it work for you as well.
Well yes marriage being a major life event in any one's life can act as a precipitating stressful factor which may trigger the obsessional thinking of doubt which may further unfold more severe compulsive rituals and acts thereby giving way to OCD symptoms. So yes in your case one cannot rule out the possible connection between your marriage and ocd symptoms but having said that I will also like to encourage you to stick to your drug regime which shall see you through this tough phase of your life.
Also going off medicines too must have contributed to your ocd symptoms as had you been on the medicines then you could possibly have bypassed the part where marriage becomes a stressful triggering factor giving way to flare up of ocd symptoms.
So to summarize--
Stick to your doctor's sound advice .
If possible ask your psychiatrist to give you CBT sessions which is a type of counseling technique suited for curbing ocd symptoms.
Have patience and keep faith in your drug regime and your doctor, this will give you inner strength and belief which shall reflect good improvement of your symptoms.
I hope this helps.
Wish you all the best.
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