I answered a similar question last night on here. Creating fantasies in your head are perfectly natural, but it’s quite clear you’re starting to develop a crush on the guy at work and there will always be people out there other than your partner that you will find attractive, so maybe this could just be a phase that will soon fade away. Whatever you do, don’t act on the fantasies going through your head.

Invest in some lubricant and make sure you’re indulging in 20-30 minutes of foreplay before everything else.

When you’re having a conversation next and not a ‘Hey how are you’ quick phone call/text but a proper good ol conversation tell him that you’d prefer if you go to know each other more before getting physical again.

Sexual compatibility is important to a lot of people, so don’t cross it off the list if this is something you need in a relationship.  It’s up to you now to decide what you want to do in terms of continuing the relationship. Perhaps you could try and bring toys into the bedroom that will help him last longer, such as a cock ring. They do help.

Why don’t you book a phone call session with me. I answer this question often, yet I think some women overlook it or don’t understand how dating works. You can talk to me personally here

https://simplyoloni.com/relationship-coaching-packages/