Most Helpful Guy
If her reasons were ligitimate then yes I would. If it was pretty obvious there was flirting and other things going on then ya I would break contact because that is disrespectful to the relationship you are in and you have to give things like that your all.
If it was just jealousy, then no. I would reassure her that nothing is going on and prove it by showing all texts/information and inviting her to come along with stuff. Showing her that nothing is going on would remedy that situation.