<human>: Can you condense the text into three sentences or less?

My gf doesn't use reddit to my knowledge but I'm using a throwaway anyways because I'm paranoid. 

I've been going out with Sarah for about a year. Lately things had been getting a little stale (not much excitement/novelty) so we agreed to engage in a prank war. Some people might think that that's a weird solution but or our personality types it seemed like a good idea.

The start was great and really exciting. I encased some of her cookwear in Jello, put soup mix in her shower head, etc. I also got pranked and they were all pretty funny. During this period things were also picking up on other fronts. We were going on dates more often, the sex was better, and we seemed more connected. So, possibly weird but it worked.

Then things started escalating and it seemed like we got off the same page. Her pranks got more extreme (shitting in my car, pissing on my mattress, sending male strippers to my door, etc.). I wasn't really happy about these pranks but since then she has been over the moon. Like when I walk through her door she jumps on me and kisses me she is so happy. She'll send me texts at work that she is just so happy to be with a great guy like me. The sex is over the moon great and she is in general happier than I have ever seen her before. The other day I came home and she had bought me a video game I really wanted out of the blue "as an expression of her love." I really try to reciprocate (because I do love her) but I am getting resentful of the accompanying pranks.

How do I address this? I don't want to clean shit out of my car anymore but I want to keep this great relationship and keep her happy. How should I approach her to make this happen?
<bot>: I got into a prank war with gf. Since then the relationship has really taken off and she is happier than ever but I am getting resentful of her extreme pranks. How to excise the bad but leave the good?