What I am trying to achieve is when the layout breaks down to mobile the image block matches the same height as the title/content blocks.
The layout is quite tricky, it works as expected on desktop view with the title block being at the top full width. I think the issue is using flex-wrap: wrap on the mobile view? (I have got this layout working using CSS grid but unfortunately it cannot be used on production)
.wrapper {
  display: flex;
  flex-wrap: wrap;
  width: 100%;
  justify-content: flex-end;
}
.title {
  background: tomato;
  width: 50%;
}
.image {
  background: cornflowerblue;
  width: 50%;
  height: 150px;
}
.content {
  background: gold;
  width: 50%;
}<div class="wrapper">
  <div class="image">img</div>
  <div class="title">title</div>
  <div class="content">content</div>
</div> 
     
    