Belated birthday wishes to you! Sounds like you had a great weekend and birthday. It is good to pamper yourself every once in a while.
Regarding Gabe. Have you affirmed the extra attention he is giving you? Make sure he knows you verbally appreciate it. As to his moodiness, why not be just direct with him and say "Hey you seem a little tense and stressed lately - is everything ok, or is there anything I can do to help?"
On the exercise front, instead of decreasing, or increasing the exercise time, maybe try to work in some interval training. Do 5 minutes at a pace and incline which is above what you are used to and then do 5 minutes of recovery at a much slower pace. It will help you build up endurance.
