Healthy Relationships Support Group
No relationship is perfect. A long-term relationship requires constant effort to understand each other, fix misunderstandings, solve problems and continue to grow as both individuals change and evolve. How we deal with our misunderstandings is the focus of this community. Join us to find support, get advice, and share your experience with your relationship.

I suggest a long engagement and couples counseling,
As far as the sex thing goes,there's really no "normal" thing. It's up to the individual. Is he stressed/depressed about something(s)? This is another reason you should consider premarital counseling, IMHO. Good luck!
The texting thing is definitely a bad sign