is it possible.....

[fuckertyfuckfuck]

to fall in love all over again with the person?

To explain a bit DP and I have had a rough time recently but we've stayed strong.
Im pretty sure I feel in love with him all over again yesterday.
To the point where I'd marry him tomorrow, and never been one to say I'd like to get married

Anything's possible. However, be careful.... Sometimes that surge of 'love' you feel after a rough time is simply the feeling of relief that comes at the end of a relationship crisis. Some are even unscrupulous enough to deliberately create crises as a way to manipulate their partner's feelings.

What was the nature of the 'rough time'

A lot of stress on my part and he supported me throughout
im not about to marry him but would

Then if he's gone the extra mile and you're seeing him in a new, favourable light, I'd say your love has deepened. Nice.