Hello, ShadowLight. Spring pruning of remontant roses can be done 3-5 weeks before the average date of last frost. For you, this date falls on March 31 so prune anywhere from the last week in February thru March 31st. I have developed the same habit as you; when Valentine's Day approaches, I know it is time to prune. However, it do not fertilize them then. I wait until my average date of last frost or 2 weeks later because I do not want sudden cold weather to zap the tender new growth. This year, we got snow 5 days after our average date of last frost! Oh well. They do not call them averages for nothing!
PS - If you have any roses that only bloom once (in Spring) then prune those after blooming but no later than July-ish or so.