Please help... need advice

I’ve been with my boyfriend for 5.5 years. I love him very much and I am at the point in my life where I am ready for us to move on. He’s not quite ready yet, he says it is finances, which we are fine financially but I suppose it is true that we don’t have extra extra money - I have no reason to doubt that is his reasoning... except:

He got upset the other night and his solution was to spend time out of the house, which is fine, if he needed space to think. But he calls a little while later and tells me he is at the bar. This didn’t exactly sit well with me considering he knows a lot of the bartenders since he frequents it.

That’s usually not something I worry about. He has never cheated(so I know of) and always invites me (except for this one instance since he needed space) and I get along with most of the bartenders and they know we’re together.

The reason this isn’t sitting well with me is because I didn’t find it appropriate for that to be the place that he wants to spend his time if we’re not getting along. I try my hardest not to worry about these bartenders and to have trust but if that is where he goes when disgruntled, I can’t help but feel like their company is more stimulating to him than mine. Now I feel slightly uneasy about him going to this bar now at all and I don’t know how to bring this up. I’m not sure if I’m getting jealous because there was female attention or if I have a legitimate reason to be upset....

Someone set me straight...