I know it I had the chance to go on a paid for trip with my 6 sisters my spouse would be carrying my bag to the car and wishing me well.

Feelings aren't necessarily wrong or right; they are just feelings. Is there something else going on? Is a week too long? Will you not function well without her? Maybe the thought of keeping the household running is daunting. When my mom got sick and I had to keep all the balls in the air it was pretty stressful at times because I knew her condition would not improve.

Who knows it's sometimes healthy to spend a little time a part. It can be positive for a relationship. Since she has made the decision to go try and find the positives in this for you and your relationship.