I agree . I think they are completely mismatched in that regard. Age gap aside, he has chosen a career that legitimately he will need to move/be away for long periods of time to be successful.
Ally does not have that flexibility as she has a daughter that she can't just uproot and relocate whenever he gets a job someplace else. I give them another few months but I'd say they will be gone again. I think he sweet talked her , she went back , but her self esteem is on the toilet and I think she would rather settle than be alone