No dear, Wally won’t replace Titan…You’ll feel your heart grow, and as he does some of the things puppies do, and you remember Titan doing them when he was young, you will smile and chuckle to yourself with those fond memories. Titan will always have a special place in your heart, no matter how many puppies come into your home. 😀 That being said, I hope Wally picks you!!! You’re sweet and I think he may be a good boy that fits right in with your family. 😉