There is not much research when it comes to research in if a same sex couple will make it any better than heterosexual couples. However, you can sill apply many of the concepts in the book "InvestiDate: How to Investigate Your Date" by Maria Coder. This book can help with any relationship in life, not just possible dates. When it comes to same sex relationships there is not much difference in how a relationship works other than anatomy. For instance, a couple comprised of men can easily be other centered and same with two women. As long as the couple continued to enlist the idea of other centered into the relationship. they should beable to live a happy married life together.