Divorce and new love

I will be finalizing my divorce next week after a two and half year separation. I wish I wasn't divorcing as I miss my "old" husband very dearly, but he had an affair after 14 years and left to be with the OW. Leaving me with our two boys and home and all the responsibilities that come with it. Cut back to about a year ago and Imet a great guy. We have been together ever since, but our time is limited to seeing each other once or twice a week. I guess I feel so man different emotions right now. To clarify,I miss my husband, but we are not getting back together. I know this is making me second guess if I should be in a relationship with my boyfriend. I feel like Ican't trust myself, my feelings right now.